Four Questions about Vaccination for the Elderly —— An investigation report from the front line of epidemic prevention and control

  Xinhua News Agency, Beijing, December 18th: Four Questions about Vaccination for the Elderly — — Investigation report from the front line of epidemic prevention and control

  Xinhua news agency reporter

  90.37%, which is the proportion of people who have completed the whole vaccination of Covid-19 vaccine in China; 86.6% and 66.4%, respectively, are the proportion of people over 60 years old and over 80 years old who have completed the whole vaccination.

  With the weakening of pathogenicity in Omicron, the popularization of vaccination and the accumulation of prevention and control experience, China’s epidemic prevention and control is facing a new situation and new task.

  The comprehensive group of joint prevention and control mechanism in the State Council optimized the implementation of the "New Ten Articles" of epidemic prevention and control, and accelerated the Covid-19 vaccination for the elderly. The Central Economic Work Conference just held also proposed that we should optimize epidemic prevention and control measures according to the current situation, conscientiously implement various measures for epidemic prevention and control in the new stage, focus on the prevention and control of the elderly and groups suffering from basic diseases, and strive to maintain health and prevent severe diseases.

  Why should we emphasize the necessity of vaccination for the elderly? Does vaccination work? Is vaccination safe? The reporter launched an investigation on the front line of epidemic prevention and control.

  On December 15th, at the COVID-19 Vaccination Point in Zhongguancun Street, Haidian District, Beijing, medical staff vaccinated the elderly with COVID-19 vaccine. Xinhua News Agency reporter Ren Chaoshe

  How necessary — — The defense line of the elderly group is relatively fragile.

  Li Cuiwen, 78, lives in a remote village in the central province. Children are all in the city. On weekdays, they send rice flour oil, and the vegetables are grown in their own fields. They go to the town to catch a gathering once a month.

  "I can’t see outsiders." Li Cuiwen and his wife have not been vaccinated with Covid-19 vaccine so far. "Is everyone fighting, even if we don’t fight, we can’t infect us?"

  Li Cuiwen is not the only one who has similar questions. In this regard, Xia Gang, director of the Department of Health and Immunity of the National Bureau for Disease Control and Prevention, said that there are quite a few disabled and semi-disabled people in China who live at home for a long time and rarely go out, but they may still be infected when they are accompanied by relatives or visited by relatives.

  Compared with the previous strains in Covid-19, the pathogenicity of Omicron is weakening, but the infectivity is becoming stronger. The extremely fast transmission speed is multiplied by China’s huge population base. Even if the severe illness rate and mortality rate are already very low, the number of people at risk should not be underestimated.

  During the epidemic in Shanghai from March to June this year, compared with those who were not vaccinated, the death risk of people over 60 years old who completed the booster immunization was reduced by 98.08%, and that of people over 80 years old who completed the booster immunization was reduced by 95.83%.

  At the press conference of the State Council Joint Prevention and Control Mechanism held recently, Xia Gang introduced that according to the research, if the elderly over 80 years old are not vaccinated with one dose of vaccine, the risk of death after being infected with Covid-19 is about 14.7%; If one dose of vaccine is inoculated, the risk of death will be reduced to 7.16%; If three doses of vaccine are inoculated, the risk of death will be reduced to 1.5%.

  "I strongly call for accelerating the vaccination of vaccines, especially for vulnerable people such as the elderly." Zhong Nanshan, an academician of China Academy of Engineering, said.

  On December 15th, two groups of communities were prepared in Kangmei Street, Liangjiang New District, Chongqing, and the medical staff of the community health service center checked the information of the elderly who had been vaccinated with COVID-19 vaccine. Xinhua News Agency reporter Huang Weishe

  How effective is it — — Survey data show that the risk of severe illness can be greatly reduced.

  In Chongqing, Zhang, an 84-year-old rehabilitation patient, told reporters that he suffered from many basic diseases such as hypertension and diabetes. He completed the third dose of vaccination in July this year and was infected with Covid-19 in November. After treatment, his condition was effectively controlled and he has been discharged.

  On December 16th, in the home of residents in Honghe Road Community, Zhongshan Road Street, Yongchuan District, Chongqing, the mobile vaccination team conducted pre-vaccination consultation and physical examination for the vaccinated elderly. Xinhua News Agency reporter Huang Weishe

  "Studies at home and abroad confirm that vaccination has a good effect in preventing serious illness and death." Xia Gang said that after being infected with Covid-19, the elderly are more likely to develop into severe illness or even death, and Covid-19 vaccine will benefit the most.

  At most, beijing ditan hospital has treated more than 100 COVID-19 patients over 80 years old. Chen Xiaoyou, vice president of the hospital, said that the vaccination rate of these elderly patients is generally low, and the incidence of severe illness after illness is relatively high, especially in COVID-19, which is aggravated by basic diseases.

  COVID-19 Designated Treatment Hospital in Hefei — — Ding Zhen, director of the Department of Respiratory and Critical Care Medicine of Hefei Binhu Hospital, told the reporter: "For some elderly people with basic diseases such as hypertension and diabetes, Covid-19 infection may aggravate the inflammatory reaction in the body, aggravate the condition of the basic diseases, and even lead to multiple organ failure."

  Ding Zhen introduced that from the observation of their clinical treatment, the elderly who have been vaccinated are less likely to get worse and the time required for nucleic acid to turn negative is shorter.

  In October, 2022, The Lancet Infectious Diseases published a research result based on the real-world vaccination population, which was released by the relevant research team of School of Public Health, Li Ka-shing Medical College, HKU. The study shows that the effective rate of preventing severe illness is about 70% for the elderly over 60 years old who are vaccinated with two injections of domestic inactivated vaccine, and the effective rate of preventing severe illness is over 95% after the third injection of intensive immunization.

  On December 13th, in the Community Health Service Center of Baihedong Street, Liwan District, Guangzhou, medical staff made information entry and consultation for the elderly residents who came to receive COVID-19 vaccine. Xinhua News Agency reporter Deng Hua photo

  Security geometry — — Make clear the taboo of vaccination and ensure safety to the greatest extent.

  In the past few days, in Huanghuagang Street, Yuexiu District, Guangzhou, the average number of elderly people who take the initiative to consult and make an appointment for vaccination has exceeded 300, which is significantly higher than usual.

  Yu Shu and Ye Yi, who live in Nongben community, had concerns about vaccination because of their basic diseases. After many door-to-door publicity by community workers and volunteers, Ye Yi was vaccinated under the health monitoring of doctors, and there were no adverse reactions. The next day, Uncle Yu also completed the vaccination. "Now I know that the previous concerns are redundant."

  On December 12th, in Guanggang New Town, Liwan District, Guangzhou, elderly residents got off the convenient vaccination vehicle after receiving COVID-19 vaccine. Xinhua News Agency reporter Deng Hua photo

  The reporter found in many places that the enthusiasm of the elderly for vaccination has improved significantly recently, but some elderly people are still worried about the safety of vaccines. Many elderly people admitted to reporters that they were mainly worried that "they are old and have basic diseases, which will bring adverse reactions after vaccination".

  "Chronic diseases such as diabetes and hypertension are not absolute taboos for vaccination in Covid-19. As long as these chronic diseases are well controlled and in a stable period, Covid-19 vaccine can be vaccinated." Zheng Zhongwei, director of the Science and Technology Development Center of the National Health and Wellness Commission and head of the working group of the vaccine research and development special class of the the State Council Joint Prevention and Control Mechanism, said.

  According to the situation of vaccine research and development and the practice of vaccination, the joint prevention and control mechanism of the State Council has defined the vaccination taboos of the elderly in the Work Plan for Strengthening Covid-19 Vaccination for the Elderly, including four types of situations in which vaccination cannot be carried out or postponed. At the same time, local health departments should implement the "four haves" requirement that vaccination units should have emergency personnel stationed in general hospitals with level 2 or above, emergency equipment and medicines, 120 ambulances on duty, and green channels for treatment in general hospitals with level 2 or above to ensure vaccination safety.

  Step by step to carry out training on judging vaccination contraindications, and guide medical staff to scientifically judge vaccination contraindications; Well-known doctors from various specialties were transferred to form a vaccination consultation expert group to patiently answer various consultation questions … … Many places are refining the work of answering questions and doubts to eliminate the doubts of vaccination for the elderly to the greatest extent.

  How convenient is it — — The "last 100 meters" is constantly getting through.

  Every Tuesday and Saturday afternoon, it is the day when the "Medical Qingqi Team" comes to the door for vaccination in Pingguoyuan Street, Shijingshan District, Beijing. The "Medical Qingqi Team" consists of 5 to 6 street, community workers and medical staff, and is divided into two groups, each group can enter about 12 households.

  "Conduct a health assessment first, ask the elderly whether they have basic diseases, look at past medical history, etc., and confirm whether the elderly are suitable for vaccination." Luo Yan, one of the medical staff of the "Medical Qingqi Team" and the medical department of Beijing Rehabilitation Hospital affiliated to Capital Medical University, said, "After the assessment, we will further communicate with our family members, and after the family members agree, they will sign an informed consent form and vaccinate."

  Similar situations have appeared in many places recently. A special session of Covid-19 vaccination was held in Jinbi Yayuan Community, Baiyun District, Guangzhou. 63-year-old Ms. Liu suffers from rheumatoid arthritis. The medical staff inquired about her physical indicators in detail. After assessing that she met the vaccination requirements, she was instructed to take the third shot of vaccine.

  On December 10th, He Lingling (left), a nurse from Fangmiao Street Community Health Service Center, vaccinated the elderly in the community with COVID-19 vaccine at COVID-19 vaccination site in Yaohai District, Hefei. Xinhua News Agency reporter Guo Chenshe

  Li Zizhen, director of the immunization room of the Community Health Service Center of Dongcheng Sub-district Office in jieshou city, Anhui Province, told the reporter that twenty or thirty elderly people have come to get Covid-19 vaccine every day recently, and the telephone number for consultation is also from morning till night. A mobile door-to-door vaccination service team was set up in the local area, equipped with first-aid equipment and medicines, and came to the door at any time.

  Set up green channels for the elderly, temporary inoculation points and mobile inoculation vehicles; Medical staff with rich experience in diagnosis, treatment and vaccination are selected to form vaccination teams, carrying common equipment and medicines needed during post-vaccination observation, and providing home vaccination services for disabled and semi-disabled elderly people … … Many places are optimizing various convenience measures as required, and getting through the "last 100 meters" for the elderly.

  For the country’s 267 million elderly people over the age of 60, every 1 percentage point increase in vaccination rate means that more than 2 million people have built a barrier against serious illness and death. "The Spring Festival is coming, and now vaccination usually takes half a month to be effective, which is of great benefit to prevent large-scale spread when people go home and a large number of people migrate during the Spring Festival in Spring Festival travel rush." Zhong Nanshan said.

12 questions about COVID-19 vaccine, look at the answers.

On the afternoon of March 28th, the State Council Joint Prevention and Control Mechanism held a press conference to introduce the vaccination and supply guarantee in COVID-19. As of March 27th, 2021, 102.417 million doses of Covid-19 vaccine have been reported in various places.

About COVID-19 vaccine, the conference also introduced these latest news.

1. What should I do if I am not sure if I am suitable for vaccination?

If it really belongs to the vaccination taboo, it is impossible to provide vaccination services. If it is listed in the vaccination items, it is recommended to tell the vaccination doctor truthfully before vaccination. So that doctors can fully evaluate and determine whether it is suitable for vaccination.

2. How long is the vaccine protection period?

COVID-19 vaccine is a new vaccine. According to the antibody level, it will be monitored for more than six months. But we also know that antibody is not the only protective indicator, and there are other factors in the process of vaccine’s function. Therefore, we should do relevant research on the persistence of the vaccine to confirm how long its protection period is.

3. I have been vaccinated with COVID-19 vaccine. Do I need to be vaccinated again?

According to Zhongsheng of Sinopharm, during the whole clinical research, it is now observed that the persistence of vaccine protection is about half a year, and the persistence of neutralizing antibodies is also about half a year. In the clinical process of the overall design, the booster needle was designed to observe the persistence and protection level of antibodies. At present, the preliminary results show that booster needle can effectively improve the titer of neutralizing antibodies, effectively improve the persistence of antibodies, and also effectively improve the anti-mutation ability of vaccines.

In the future, phase III clinical research will be carried out overseas to continuously observe the persistence of antibodies and protection. Is it necessary to carry out booster vaccination? When will you call? Still have to answer according to the results of the next three clinical studies.

4. What is the preventive effect of COVID-19 vaccine?

The vaccine itself can prevent infection, morbidity, severe illness and death. Now, the effectiveness result we get is the result of our clinical experiment. With the application of the vaccine, we will also carry out related research on its protective effect after marketing.

5. How to ensure the supply of vaccines in COVID-19?

On the one hand, actively and steadily expand the vaccination service capacity, optimize the vaccine distribution process, and improve the efficiency of circulation and operation. To scientifically arrange the turnover quantity of vaccines, the requirement is not to overstock the inventory, and to increase the number of inoculation points and inoculation stations in various ways to meet the vaccination needs of the masses. On the other hand, it is necessary to strengthen the linkage between departments and coordinate the industrial and information departments to strengthen the supply guarantee of vaccines.

6. After the first injection, how long is the best time to inject the second injection?

After the first dose of vaccination, the interval between the second dose of vaccination should be greater than or equal to three weeks, and the second dose of vaccination should be completed as soon as possible within 8 weeks after the first dose of vaccine.

7. If you catch up with a business trip or go out, can you get a second shot in a different place?

According to the guidelines, it is recommended to use the varieties of the same enterprise as much as possible to complete two doses of vaccination. If the same variety is not available in different places, then other vaccine products of the same kind can be replaced to complete two doses of vaccination.

Effective period

8. If I miss the second dose of vaccination for some reason, how can I make it up?

For those who have not completed 2 or 3 doses of COVID-19 vaccine according to the procedure, it is suggested to replant as soon as possible. There is no need to restart the immunization program, just replant and complete the corresponding dose.

9. Some vaccine developers have been vaccinated in February and March last year. What are the antibodies in these people?

Some people, as the vanguard of vaccines, have been vaccinated with inactivated vaccines in COVID-19. We are constantly monitoring the change data of antibodies in their bodies. At present, we have obtained the antibody monitoring data for 9 months. Judging from the current data, the antibodies in 9 months still have a certain level. We will continue to strengthen monitoring in the future.

10. Will foreign virus variation affect the effectiveness of existing vaccines?

Vaccine research and development units and production units pay great attention to dealing with the variation problem. Two inactivated vaccines of Sinopharm Group China Bio, using the serum after the second and third clinical trials at home and abroad, have carried out cross-comprehensive experiments on the strains found in South Africa and Britain, as well as more than 10 strains found in different regions and epidemic areas in China. The results show that neutralizing antibodies produced by the two inactivated vaccines have a good neutralizing effect on these strains. Small variation of the virus will not affect the antigenicity of the vaccine, that is, the vaccine will be effective without variation of protective antigen, especially the whole virus inactivated vaccine.

11. How to advance the national plan for vaccination of the elderly?

At present, Beijing, Shanghai and other regions have been vaccinated with Covid-19 vaccine for some elderly people over 60 years old and patients with chronic diseases who are willing to be vaccinated and in good physical condition under the premise of fully evaluating the health status and infection risk of the vaccinated objects. In the next step, we will actively and steadily promote the vaccination of people over 60 years old and patients with chronic diseases in combination with the use effect of vaccines in large-scale populations.

12. When will people under the age of 18 be vaccinated?

Last year, the phase I/II clinical research conducted by China Bio in Henan covered the systematic, safe and immunogenic clinical research of the young age group of 3-17 years old. At present, the safety data of this age group have been completely obtained, and the expected results have been achieved. The detection of immunogenicity and neutralizing antibodies has also been completed. We will communicate with the Food and Drug Administration in the near future, and I believe that this group of people can be covered in the near future.

(Source: Henan CDC)

Original title: "12 questions about COVID-19 vaccine, look at the answer"

Read the original text

China Internet Illegal and Bad Information Reporting Center took stock of the top ten online rumors in May.

  Blackmail virus, xiong’an new area, bike-sharing … These hot topics were concerned by netizens in May, and all kinds of online rumors also took the opportunity to fish in troubled waters and confuse the audience: "bike-sharing cushion is now’ AIDS needle’, and it will be infected when it is stuck", "Bitcoin ransomware can invade mobile phones" and "xiong’an new area compensation standard is announced" … China Internet Illegal and Bad Information Reporting Center sorted out the top ten online rumors in May to set the record straight.

  Myth 1: floss is made of cotton.

  In late May, a video was widely spread on WeChat group, saying that it was proved by washing and burning that some floss breads and cakes on the market were made of cotton. The video caused a lot of forwarding, which caused netizens to question and worry about food safety, and even related products were returned and removed from the shelves, causing great losses to some enterprises.

  Truth:China food and drug administration’s official magazine "China Food and Drug Administration" and WeChat WeChat official account’s "CFDA China Food and Drug Administration" denied that the essence of dried meat floss is muscle fiber, and the main component is protein, which will melt when put into your mouth and taste soft. The essence of cotton is plant fiber, the main component is cellulose, which is an insoluble fiber. Although it looks soft, it is not chewy. In other words, if you really pretend to be floss with cotton, you will be seen through when you eat it! In addition, the "fire identification method" used in the video is not reliable. Protein, the main ingredient of the floss, is combustible, so it is normal to be ignited, and there will be a burnt smell. Combustibility does not prove that the floss is made of cotton.

  Rumor 2: bike-sharing cushion is now an "AIDS needle", and it will be infected when it is tied.

  At the end of May, pictures circulated on the Internet said that someone found a needle on the seat cushion of a bike-sharing, as if someone had done it on purpose. "Please pay attention to check when riding a bike. Some AIDS patients dye their blood on the needle. If they are stabbed, you will be infected."

  Truth:First of all, scientific research shows that HIV cannot survive in air, water and food. Once you leave the human environment, the virus will soon lose its ability to spread. Secondly, the human body only ingests enough HIV to cause infection. The blood and liquid content on the needle is inherently low, and the amount of virus is even less. Therefore, even if there is virus residue on the needle, it is difficult for the number of viruses to reach the pathogenic conditions. In this regard, the yellow bike-sharing company ofo involved in the online picture issued a statement: "Xiaohuangche verified the cities involved in the rumor at the first time and did not find any situation mentioned in the rumor."

  Proverbs 3: Bitcoin ransomware can invade iOS and Android phones.

  After the outbreak of the Bitcoin blackmail virus "I want to cry", rumors about mobile phones being infected with this virus have come and gone. All kinds of information are widely spread on social networking platforms. There are rumors that "a new type of computer virus’ want to cry’ broke out around the world, and mobile phones will be invaded, whether it is Android or Apple!" At the same time, it also said, "This is an upgraded version of the ransomware. Once it is blackmailed, there is no way to save it at present, only prevention!"

  Truth:According to feedback from network security agencies such as 360 and Cheetah, no bitcoin ransomware has been found to infect mobile phones. The ransomware is a virus aimed at Windows, and it is impossible to run on Android phones or Apple phones. However, experts also reminded that if the mobile phone is connected to the computer infected with the ransomware as a storage device, the files in the SD card of the mobile phone may be infected with the virus.

  Proverbs 4: xiong’an new area compensation standard announced.

  The news that the Central Committee of the Communist Party of China and the State Council decided to set up xiong’an new area has aroused widespread concern in society. Along with this hot topic, some rumors have also spread. In mid-May, there was a so-called "xiong’an new area Compensation Standard" circulating in the circle of friends, which claimed that every rural resident in Xiong ‘an New District, regardless of the size of their homestead, had three sets of houses with a total area of not less than 300 square meters.

  Truth:The so-called "compensation standard" is a complete rumor. Previously, the Provisional Party Committee and Preparatory Committee of xiong’an new area, Hebei Province issued a clear paper entitled "Adhering to the People-Centered Concept and Seriously Formulating Land Expropriation and Relocation Policies". According to the paper, at present, the land requisition and relocation work in the new district is in the stage of investigation and consultation, and the Preparatory Committee of the new district has not released any content of "standards for requisition and relocation" in any form. On May 20th, Xiongxian Public Security Bureau made a punishment decision of 10 days’ administrative detention on Sun Moumou who was suspected of spreading rumors about "xiong’an new area compensation standard".

  Proverbs 5: The video of "Taiyuan earthquake of magnitude 12" contains ransomware.

  In mid-May, a message "The video of the earthquake with magnitude 12 in Taiyuan" was widely spread in the WeChat group: "Please pay attention to the news just received from other groups: Don’t open the video of the earthquake with magnitude 12 in Taiyuan, delete it immediately, it is a ransomware, especially the one with Alipay on the mobile phone. Just now the news was broadcast, and everyone started to transfer to each of their own groups. Don’t be fooled. "

  Truth:Weibo, the official of "Taiyuan network police patrol law enforcement", denied the rumor, which is a rumor of "rubbing hot spots". First of all, the Taiyuan earthquake of magnitude 12 alone is very suspicious. Worldwide, the earthquake with the largest magnitude recorded was the one that occurred in Chile in 1960, with a magnitude of 9.5. Secondly, we can’t find any video titled "Taiyuan earthquake with magnitude 12" on the Internet. This is obviously a rumor that uses blackmail virus to rub hot spots.

  Proverbs 6: From June 12306, I can only buy tickets.

  At the end of May, a notice circulated on the Internet: 12306 will require registered users to use their bank cards for payment from June this year. At that time, users can only buy tickets for themselves, and children will not be able to buy tickets for their parents.

  Truth:The 12306 National Railway Customer Service Center responded that without similar notice, a registered account can still buy tickets for five of the common contacts at the same time. Website registered users should have the same name as the payment bank account, but it does not affect everyone to use their own accounts to buy tickets for common contacts.

  Myth 7: A horrible family photo.

  In mid-May, a photo circulated on the Internet said that there was only one young man in a family of eight in Rudong County, Jiangsu Province, which was a horrible family photo.

  Truth:The "only" young man in the photo @ Oh, there is Weibo. According to personal Weibo, there are not only these people in the family, but also brothers and sisters, uncles and aunts. The whole family adds up to 40 or 50 people. As for this photo, it was taken a few years ago to promote filial piety to the elderly, and did not let his uncle, aunt, sister and brother appear.

  Proverbs 8: Female anchors hide in the Forbidden City at night and broadcast live.

  After the May Day holiday, a video of "Female anchor staying at the Forbidden City for live broadcast of Cixi’s bed" was widely spread on the Internet. The woman in the video has been dressed in ancient costumes and broadcast live in the Forbidden City many times, and claimed that she would avoid the security of the Forbidden City and broadcast it again at night. That night, the woman filmed in a building similar to a palace, claiming to be "now alone in the Forbidden City".

  Truth:On May 19th, the Beijing police informed that, after investigation, the offender Li (male, 27 years old) wanted to promote an online APP by supporting Zhou (female, 22 years old). Under the planning of Yang (male, 44 years old), the three entered the Forbidden City during the day on May 1st by purchasing tickets normally and broadcast live pictures. In the meantime, Yang and Li deliberately pretended to be netizens and proposed to broadcast live in the Forbidden City at night. That night, the three people went to an ancient imperial city scenic spot in Shunyi District to continue the live broadcast, and lied that the scene was in the Forbidden City, fabricating the false fact that the female anchor stayed in the Forbidden City for live webcast. According to the Law on Public Security Administration Punishment, the public security organs detained Yang for 10 days, Li for 10 days, and Zhou for 5 days (suspended due to illness).

  Proverbs 9: Bananas are soaked in formaldehyde, and they will be poisoned if eaten.

  At the end of May, a video of "Banana Soaked in Unknown Liquid" was widely circulated in Weibo, WeChat group and friends circle. Consumers are worried that the unknown liquid is a toxic liquid, and some even speculate that it is formaldehyde.

  Truth:Wang Mingyue, a researcher at the Institute of Agricultural Products Processing, Chinese Academy of Tropical Agricultural Sciences, said that the milky liquid in the video is a preservative. Bananas are perishable after picking, so they need to be preserved for long-distance transportation. At present, prochloraz, thiophanate-methyl and iprodione are mainly used as banana preservatives. These are internationally recognized low-toxic fungicides, which degrade quickly and are registered by the competent authorities and allowed to be used in banana preservation. The competent authorities have also formulated the corresponding recommended dosage and residue limit standards. Therefore, consumers do not need to worry at all, and bananas that have undergone formal preservation treatment can be safely eaten.

  Myth 10: A drop of blood can measure cancer.

  At the beginning of May, a "major breakthrough! The article "A drop of blood can be measured for cancer has been approved for clinical use" attracted attention on the Internet. The article mentioned: "The Luo Yongzhang team of the School of Life Sciences of Tsinghua University independently developed a kit, which can be used for cancer condition monitoring and treatment effect evaluation by patients only taking a drop of blood." Individual media and self-media then forwarded that "a drop of blood can measure cancer".

  Truth:Professor Sudan of Zhejiang Cancer Hospital said that the statement that "a drop of blood can detect cancer" is not rigorous, and the role of tumor markers in tumor diagnosis is exaggerated. Up to now, there is no blood marker in the world that can accurately diagnose tumors. In fact, Luo Yongzhang himself once denied this, saying that "a drop of blood can detect cancer" is very inaccurate, and the exact statement should be "monitoring tumor".

After 11 years of plastic limit, the use of plastic bags in Xi’ an is still very large, and the farmers’ market says that there is no substitute.

Today is World Environment Day.

World theme:Defend the blue sky, I am an actor.

China theme:Beautiful China, I am an actor.

Shaanxi theme:Beautiful Sanqin, national action

June 5th is World Environment Day.

On June 5, 1972, the United Nations held the first conference on human environment in Stockholm, Sweden, and adopted the famous Declaration on Human Environment and the Action Plan to protect the global environment. The 1,300 delegates from 113 countries and regions attending the conference suggested that the opening day of the conference be "World Environment Day".

On June 5th every year, the United Nations Environment Programme selects a member country to hold the commemoration of "World Environment Day", publishes the Annual Report on the Status of the Environment and commends the "Top 500 in the World", and formulates the theme of "World Environment Day" according to the world’s major environmental problems and environmental hotspots of that year.

In 2019, World Environment Day will be hosted by China, and its home event will be held in Hangzhou. On June 5th, the Ministry of Ecology and Environment and the United Nations Environment Programme will jointly host the World Environment Day Global Home Event in Hangzhou, Zhejiang Province.

In order to protect the ecological environment, in 2008, China began to implement the "Plastic Restriction Order". For 11 years, what about the use of plastic bags in Xi ‘an? Yesterday (June 4th), the reporter from Huashang Daily visited several supermarkets and farmers’ markets in Xi ‘an and found that there were still a large number of plastic bags in use.

A number of supermarkets and farmers’ markets in Xi ‘an still have a large number of plastic bags in use. Vision china data map

Phenomenon: Old people often bring their own cloth bags.

On December 31st, 2007, the General Office of the State Council issued a notice on restricting the production, sale and use of plastic shopping bags, which was called "plastic restriction order" by the masses. The "Plastic Restriction Order" stipulates: "From June 1, 2008, the production, sale and use of plastic shopping bags with a thickness of less than 0.025mm are prohibited nationwide". Since June 1, 2008, the system of paid use of plastic shopping bags has been implemented in all supermarkets, shopping malls, bazaars and other retail places, and plastic shopping bags are not allowed to be provided free of charge.

Yesterday morning, the reporter saw in Yonghui Supermarket near Park South Road in Xi ‘an that there was a lot of people flowing. In the vegetable area, fruit area and grain area, there were free pre-packaged bags. Most customers used a separate bag for every purchase. An old lady who is choosing dishes has a cloth bag hanging on her shoulder. "This is my special cloth bag for buying vegetables. The shopping bag that can be carried in the supermarket is charged. I have this to save money and protect the environment." The old lady said, "My cloth bag will be washed once in a few days, and it is very clean to use."

The reporter of Huashang Daily noticed that many elderly people in supermarkets are carrying cloth bags or other reusable bags.

Supermarket: Free prepackaged bags are used in large quantities.

Mr. Lu, a staff member in the vegetable area of the supermarket, said: "Free prepackaged bags can use 2-3 rolls per day on average, with about 1,000 bags per roll. Compared with the plastic bags charged at the checkout counter, these free bags are used more."

Customer service supervisor Mao Dandan has worked in this supermarket for 10 years. "Shopping bags used at the checkout are all charged, small two hairs and big three hairs. Under normal circumstances, the number of shopping bags charged per month can be 20,000-30,000. In the peak period of the Chinese New Year holiday, the number of shopping bags charged per month can be 40,000-50,000. "

Mao Dandan said: "Overall, compared with before 2008, the use of plastic bags has declined, but it is difficult to eliminate it. Young people think that buying a plastic bag is not much money, and they can use it as garbage bags when they go home."

Yesterday morning, the reporter from Huashang Daily came to CR Vanguard Supermarket near Xiying Road. A staff member in the vegetable area and fruit area said: "You can use 6 rolls of prepackaged bags every day, with about 500 bags per roll." A staff member of the customer service department said: "Shopping plastic bags cost 2 cents for small bags and 3 cents for large bags. On average, you can use 10 boxes per week, with 1,000 boxes per box. The free pre-packaged bags in the supermarket are provided by suppliers, and we have not made statistics. " During the visit, the reporter found that the supermarket also sells reusable shopping bags, ranging from a few yuan to a dozen yuan. "Not many people buy it." A cashier said.

Farmers’ market: no plastic bag substitute can be found.

Yesterday afternoon, the reporter came to Xin Zhuque Agricultural Trade Wholesale Market in Xi ‘an, and saw many colorful plastic bags hanging on the stalls, and some customers carried many plastic bags of different colors in their hands.

A female boss of a booth said: "When business is good, we can use about 10 plastic bags every day, 50 for each, and 5.5 for each. We spend 55 yuan on plastic bags every day and get 1650 yuan a month."

"You see, there are big and small bags in my house, a small bag with 3 pieces of 5, a big bag with 6 pieces of 5, and 7 pieces of 8 pieces. Almost 15 small bags can be used every day, and 5 large bags can be used every day, each of which is about 50, and about 750 small bags are needed every day. " The female boss of another booth said, "When customers buy a dish, they will use a bag alone."

Mr. Wang, deputy director of the market management office, said: "The market has been in operation for five years and there are three or four hundred merchants. These plastic bags are non-degradable, and we don’t want to, but we can’t find a substitute. Judging from the products currently on the market, plastic bags are low in cost and convenient to use, and everyone still has no other choice. "

Environmental experts: the government, enterprises and citizens need to work together.

Deng Shunxi, a professor at the School of Environmental Science and Engineering of Chang ‘an University, said: "Plastic bags are mostly polyethylene, which cannot be degraded after being buried underground for hundreds of years. After burning, there are not only residues, but also harmful gases that pollute the environment."

"The plastic bag itself is not good, because the use cost is very low and it is very convenient. The most effective solution is to solve it from the source and develop and produce environmentally friendly and replaceable packaging bags." Deng Shunxi said that paper bags are not the best substitute. Plastic shopping bags are low in price, light, transparent, strong, waterproof, oil-proof and corrosion-resistant. "If paper packaging is used instead of plastic packaging, in order to achieve the performance of plastic bags, it is necessary to add plastics, aluminum foil and other substances to the paper, which will not only increase the cost, but also cause difficulties in recycling."

Deng Shunxi said that at present, the cost of making more environmentally friendly packaging bags will increase, but it still needs the joint efforts of the government, packaging bag manufacturers and citizens to develop and produce packaging bags with high cost performance and degradable pollution-free. On the other hand, citizens’ awareness of environmental protection needs to be enhanced, and reusable reusable shopping bags should be used as much as possible.

(The original title is: "I am still" doing "and" shaping "after 11 years of" plastic limit ")

After eating damp and moldy millet, scientists found that male animals turned into mothers in succession.

Originality brings science home.

Seven kings of writing articles

Nowadays, more and more children’s puberty is ahead of their parents. What is the reason?

In addition to overnutrition, many studies now point to environmental endocrine disruptors, such as bisphenol A(BPA) in plastics, which can interfere with the endocrine system of humans and animals. But today we are going to introduce a stronger food-like hormone, which is widely found in grains, milk and other foods.

The name of this kind of hormone from food is Buddhist, but what it does is very coquettish. It is ZEN.

ZEN is a toxin synthesized by Fusarium fungi, and these fungi like grains best, so ZEN is widely distributed in moldy corn, sorghum, wheat and other grains, and is one of the most widely distributed mycotoxins in the world.

Fusarium, a common fungus that pollutes grains. Image source: wikipedia

In 2000, a report by the Joint FAO-WHO Expert Committee on Food Additives (JECFA) named Safety Evaluation of Certain Food Additives and Containant pointed out that 30-40% of the world’s grain was polluted by ZEN, and the pollution situation in developing countries was more serious than that in developed countries.

Many studies have detected high concentrations of ZEN in local grains. Regina Schoental, a pathologist at the University of London, pointed out that in the wet harvest season, the ZEN content of barley and corn in the barn can exceed 100,000 ppb (100,000 parts per billion), which is 1,000 times higher than the upper limit of ZEN content of cereals set by the European Union for direct human consumption.

So, what impact will ZEN have on animals?

ZEN is similar to the animal estrogen estradiol in structure, so it is also called F-2 estrous toxin. Yes, you are right. ZEN’s effect means literally.

The estrogenic effect of ZEN was first discovered by American scientists in 1926. Many people know that soy products also contain phytoestrogens, but ZEN is much more powerful than them. At that time, after eating corn contaminated by ZEN because of moisture, pigs became sick-their reproductive organs and behaviors were abnormal.

What anomaly?

Because the function of ZEN is similar to estrogen, the bad things it does on livestock include but are not limited to: estrus cycle disorder, premature estrus, abortion and stillbirth, false pregnancy infertility, low pregnancy rate and so on. Animal studies have found that most animals will be adversely affected by ZEN, such as pigs, cows, sheep and rabbits.

For example, after eating the feed contaminated by ZEN, the newly weaned sow will have estrus symptoms, such as redness and swelling of the hindquarters.

After the boar ingests ZEN, it will also become feminized, such as the chest becomes bigger, the balls shrink, the number of sperm decreases, and abnormal sperm is produced. ZEN has a similar effect on cattle and sheep. If the bull before puberty is injected with 36 mg of ZEN, the circumference of the balls will become smaller, the genitals will degenerate and the semen quality will become worse.

Even more frightening is that only a low dose of ZEN (as low as 1ppm) can cause damage to the reproductive system of pigs.

Because of the losses caused by ZEN to animal husbandry, ZEN is often called the second invisible killer in pig industry after aflatoxin.

So, will human beings be influenced by ZEN?

ZEN can be quickly absorbed by the body through oral administration or even through the skin. After entering the human body, it likes to stick to tissues affected by estrogen, such as uterus and leydig cells of testis.

For children who have not yet entered puberty, because their natural estrogen level is very low, they are easily influenced by estrogen in the environment, thus being induced into precocious puberty and making their breasts develop rapidly.

In November, 1977, a school in Milan, Italy, showed that the breasts of girls and boys became bigger. Researchers at the University of Milan then studied more than 200 boys aged 3-14 and more than 100 girls aged 3-7. In 1979, they published this research in The Lancet.

These researchers found that the breasts of children of all ages in this school are bigger than their peers in other schools, regardless of gender, and this phenomenon appeared in children aged 3-5.

These researchers believe that the reason why the students’ breasts are getting bigger in this school is that the grain and meat in the canteen of this school are polluted by estrogen.

Cereals can also understand, what is the problem of meat being contaminated by estrogen?

It turned out that shortly after the estrogen-like effect of ZEN was discovered, scientists found that low-dose ZEN was helpful to promote sexual maturity and gain meat in livestock. Therefore, ZEN and its derivatives have been sold as fattening agents for livestock for a long time. At that time, animal husbandry in many countries, including Italy, fed these synthetic growth promoters to livestock.

Zearalanol (trade name Ralgro), a derivative of ZEN, is now used to promote livestock fattening.

From 1978 to 1984, a large-scale precocious puberty incident occurred in Puerto Rico, which was attributed by many studies to the residue of ZEN or its derivative α‐ZAL (livestock is strong) in dairy products and meat products.

However, a study published in The Journal of Pediatrics in 2008 directly pointed the high incidence of precocious puberty in girls in northwest Italy to ZEN through blood tests.

Let’s look at the situation in our country. In 2012, researchers from Anhui Medical University analyzed the ZEN content in the blood of 78 children diagnosed with precocious puberty in 2009-2010, and found that the ZEN level in these China children was significantly higher than that of their peers without precocious puberty.

As more and more evidence supports the influence of ZEN on children and human reproduction, the World Health Organization recommends that the maximum tolerable daily intake of ZEN is 0.5 micrograms, while the EU’s recommendation is 0.25 micrograms per kilogram of body weight per day.

Although human beings are beginning to realize the harm of ZEN, it does not mean that we have an effective way to remove it. Another danger of ZEN is that it is a very stable substance, even at the temperature of 150 degrees Celsius, ZEN will not decompose. In other words, ordinary families can’t remove ZEN from food by cooking.

However, the traditional physical and chemical methods can not remove ZEN without destroying the nutritional components of grain, so ZEN detoxification of grain has become an agricultural technical problem.

The existing detoxification methods include enzymatic mildew remover, montmorillonite adsorption and so on, but these are only laboratory studies and have not been applied on a large scale. In daily life, the methods of removing ZEN are not beautiful, such as lime water soaking and chlorination.

Because of the reproductive toxicity of ZEN to human beings and livestock and the difficulty of detoxification, the European Union banned the use of ZEN as an animal feed additive in 1988. In 2010, our country also listed the derivative of ZEN, α-ZAL, as a non-edible substance (but it can be used as a feed additive). China’s national standard (GB 13078.2-2006) also stipulates the maximum limit of ZEN in feed.

So how can ordinary consumers reduce the harm of ZEN?

The advice of the World Health Organization is: buy fresh grains as much as possible, store them in a dry and cool place, discard the damp and moldy parts in time, and don’t store them for too long without eating.

Bring science home.

ID:steamforkids

The copyright of the original article belongs to WeChat WeChat official account

"bring science home" all

Please contact bd@wanwuweb.com for reprinting.

Original title: "After eating damp and moldy millet, scientists found that male animals have become mothers."

Read the original text

Stride to the World (China Brand World Sharing)

  68 exhibitors and more than 600 well-known brand enterprises, covering the central to local, covering the first, second and third industries … … At the first China Independent Brand Expo, shining China brands attracted many visitors through exhibitions, special activities and interactive experiences. Many of these brands are not only well-known in China, but also internationally, and they have handed out China business cards to the world by virtue of technology and quality innovation.

  "China Height" — —

  China Construction Group has built 90% of China and 50% of the world’s super-high-rise buildings over 300 meters.

  In the exhibition area of China Construction Group of the Expo, the model of "Xiong ‘an No.1 Bid" Citizen Service Center just delivered attracted many visitors. The three vertical and three horizontal distribution patterns include many innovations in the building: big data management is implemented in the whole process of construction, and each building component contains a chip or two-dimensional code. When you scan it, you will know the "past lives" of components including information such as production time, production place and inspectors. This project is also the first project in China to adopt the integrated model of investment, construction, operation and fund management, which embodies the sharing economic model of joint investment and income sharing.

  Next to the model of Xiong ‘an Citizen Service Center is the model of "China Zun", the tallest building in Beijing. The staff of the exhibition area said that the "China Zun" in the construction process is mainly to show a super-high-rise building "Gai Lou Artifact" pioneered by China: "Its jacking force is more than 4,000 tons, which makes the work at a height of 1,000 meters smooth and smooth in the 8-level gale, and the speed of Gai Lou is four days and one floor." The relevant person in charge of China Construction Group said that this "artifact" has been applied in Beijing’s tallest building "China Zun" and China’s tallest building Wuhan Greenland Project.

  China Construction Group has undertaken the construction of 90% of skyscrapers over 300 meters, 3/4 of focus city, 3/4 of satellite launch bases, 2/5 of utility tunnel and 1/2 of nuclear power plants in China. "One in every 25 China people uses the house built by China Construction Group". China Construction Group has also built 50% of the world’s super high-rise buildings over 300 meters, and built nearly 6,000 projects in 129 countries around the world.

  China Construction Group has also brought China standards, China quality and China plan to the participating countries in the Belt and Road Initiative: Cairo International Conference Center, the "Egypt-China Friendship Building", and Pakistan PKM project & HELIP, the flagship project of China-Pakistan Economic Corridor; … Up to now, China Construction Group has projects under construction in nearly 50 countries and regions, and the newly signed contracts in 2017 alone exceeded 120 billion yuan.

  "China Length" — —

  China Railway has built nearly 100,000 kilometers of railways and more than 10,000 bridges, and its shield machine technology is leading the world.

  "This is a hard rock roadheader ‘ Caiyun ’ Not long ago, it successfully challenged the longest railway tunnel in Asia — — Gaoligongshan Tunnel of Yunnan Darui Railway, and created the highest single-day footage of 32.14 meters per day! " In China Railway Exhibition Area, the commentator pointed to a horizontal cylinder model and introduced it to the visitors.

  Yi Tiejun, Party Secretary and Chairman of China Railway High-tech Industry Co., Ltd., said that the hard rock boring machine is a kind of shield machine, which is called "the carrier of underground engineering construction" and can solve the mountain tunnel construction problem that cannot be completed by manual drilling and blasting under long-distance and complex geological conditions. “‘ Caiyun ’ Many innovations have also been made in strengthening the auxiliary construction method to cope with the risks that may be encountered in excavation such as surrounding rock deformation, fault fracture zone, rockburst, water inrush and mud outburst, and high geothermal heat, and at the same time, it can better protect the ecological environment. " Yi Tiejun said.

  In addition to Caiyun, China Railway has successively developed the world’s first large-section rectangular shield, the world’s smallest diameter hard rock boring machine, the world’s first horseshoe shield and many other landmark products, and exported them to Malaysia, Singapore, Israel and other countries. The scientific and technological strength and market share of China Railway Shield Machine are the first in China and the second in the world.

  China Railway also handed out a business card of Zhang Guojia, such as China High Speed Rail, China Highway, China Urban Rail, China Bridge and China Tunnel: nearly 100,000 kilometers of railways were built in China, accounting for more than two-thirds of the total mileage of China railways; Participated in the construction of 17,000 kilometers of expressways, accounting for 1/8 of the total mileage of expressways in China; Participated in the construction of more than 2,000 kilometers of urban rail projects, accounting for 3/5 of China urban rail projects; More than 10,000 bridges have been built, with a total length of more than 21,000 kilometers; More than 19,000 kilometers of long tunnels have been built … … China Railway has also extended the length of China to the whole world, contributing to infrastructure construction and interconnection in more than 80 countries and regions.

  "China breadth" — —

  State Grid’s UHV power grid has delivered more than 900 billion kWh of electricity, building the world’s most extensive car network.

  On the UHV Engineering Electronics Show Board in the State Grid Exhibition Area, you can clearly see EHV transmission lines connecting east, west, north and south … … These UHV lines, with a total length of 31,000 kilometers, are densely woven into a transmission network on the map of China.

  "UHV power grid has played the advantages of long distance, large capacity, low loss and less land occupation, and continuously transported clean energy from the west to the east." The staff of the State Grid Exhibition Area said that at present, the inter-provincial and inter-regional transmission capacity of the State Grid UHV project has reached 190 million kilowatts, and the cumulative transmission power has exceeded 900 billion kWh. China’s UHV technology has also gone abroad, and the power highway has been built in Brazil, which has alleviated the local problem of electricity consumption in summer. At the same time, it has also realized the integration of China’s UHV transmission technology, electrical equipment, project general contracting and operation management, and promoted the export of billions of domestic electrical equipment.

  The staff said that while the national grid covers a wider area, it is also becoming more and more green. In 2017, China’s new energy generation capacity was 432.8 billion kWh, of which 376.6 billion kWh was generated by new energy within the dispatching scope of the State Grid, accounting for 89% of the country. In addition, the State Grid has also built a command vehicle networking platform. On the electronic display screen of the exhibition area, the location of each charging pile in the city is displayed on the platform, which connects people, vehicles and piles, and can clearly see real-time charging times, charging amount and other information. At present, this vehicle networking platform built by the State Grid has become a smart vehicle networking platform with the widest coverage, the most access devices and the highest technical level in the world.

  Grasping the key of independent innovation, China brand is constantly expanding its height, length and breadth around the world, going abroad with more "China solutions", and making unremitting efforts on the road of upgrading China brand to international brand and manufacturing power to brand power … …

Star Road Star Era ET has added an extended four-wheel drive version, starting at 239,800 yuan.

On the basis of pure electric, Star Road Star Era ET has added an extended range four-wheel drive option.

The extended-range four-wheel drive model of Xingjiyuan ET adopts the extended-range power system newly developed by Chery Group, equipped with a 1.5T range extender, with a thermal efficiency of 44.5%. One liter of oil can generate 3.7 kWh, and the battery capacity is 41.16 kWh, providing 240 kilometers of pure electric endurance, with a comprehensive cruising range of 1,500 kilometers, and the fuel consumption of WLTC is 5.9 liters per 100 kilometers.

The output power of the front and rear drive motors of the extended-range four-wheel drive version listed this time is 150/195 kW respectively, the comprehensive output power reaches 345 kW, and the total torque is 634 Nm, which shortens the acceleration time of the vehicle to 4.8 seconds. Combined with high-order intelligent torque control system, it can realize 0-100% intelligent distribution of front and rear axle torque, and provide seven driving modes in off-road, snow and sand.

As a medium and large SUV, the body length, width and height of the extended-range four-wheel drive version of Star Road Star Era ET are 4,955 mm, 1,975 mm and 1,698 mm, respectively, and the wheelbase is 3 meters. On the basis of providing spacious and large space, the comfort is further upgraded, including one-button zero-gravity reclining, ventilation, massage, heating and other functions of the co-driver’s zero-gravity seat, and ventilation and massage are added to the rear seats on the basis of heating functions. The new car is equipped with Lion Melody master audio and upgraded again, using the bass matrix of five subwoofers.

Star Era ET Extended Range Four-wheel Drive Edition provides high-level intelligent configuration, equipped with 8295P chip and upgraded with a brand-new EXEED OS system, which supports functions such as mobile phone keys and voice control of mobile phones, further enhancing the user’s convenient car experience. In terms of intelligent driving, the new car is equipped with 30 high-performance sensors and adopts dual Orion-X chips with computing power of 508TOPS, which can realize the industry-leading functions of high-speed navigation, urban navigation and intelligent parking, and will open an end-to-end intelligent driving covering the whole country in the first quarter of 2025. At that time, users can experience the unique intelligent driving three-point U-turn, HPA cross-layer memory parking and parking.

In terms of energy supplement and battery safety, the Star Era ET extended-range four-wheel drive version is equipped with Chery’s exclusive battery brand Kunpeng battery, which can charge the battery pack from 20% to 80% in 17.5 minutes and increase the battery life by 144 kilometers. The battery has undergone ultra-strict and reliable serial verification. After completing the 100,000-kilometer test, the battery pack has undergone 39-hour vibration test and 48-hour immersion test, and has undergone severe tests such as dropping, squeezing and scraping the bottom, as well as vehicle collision verification in more than 50 scenarios, ensuring that users have enough peace of mind in using the car.

The official launch of the Star Era ET Extended Range Four-wheel Drive Edition provides three models with prices of 239,800 yuan, 269,800 yuan and 289,800 yuan respectively. So far, Star Era ET has formed a product matrix of pure electric, extended range two-wheel drive and extended range four-wheel drive, providing users with more choices.

Author Jia Yuntao

Sohu

Russia: Korean and Japanese warplanes flying with Russian bombers. Russia has not violated other countries’ airspace.

  China news agency, Moscow, November 27 (Reporter Wang Xiujun) On the 27th, the Russian Ministry of National Defense announced that two Russian strategic bombers of Figure 95MS were accompanied by Japanese and Korean fighters during the flight.

  According to the 95MS, two strategic bombers of the Russian Air Force (Air Force) carried out routine cruise missions over the neutral waters of the Sea of Japan and the East China Sea. During this period, Russia used Soviet 35S fighters and A50 early warning aircraft to escort bombers. The cruise lasted more than 10 hours.

  According to the news, the F15 and F16 fighter jets of the South Korean Air Force and the F2 fighter jets of Japan accompanied the Russian bombers in some flight segments.

  The news emphasized that Russian flights strictly followed the international regulations on airspace use and did not violate the airspace of any country.

  Since the beginning of this year, Russian strategic bombers have repeatedly carried out cruise missions over the sea of Japan and other waters. According to the news released by the South Korean military, as of last month, the Russian Air Force had flown into the South Korean air defense identification zone 20 times without prior notice. (End)

Putin personally tells why he became a KGB agent in his early years.

CCTV News:Putin’s life experience can be said to be legendary, especially the KGB agent experience in his early career, which is quite mysterious. As a "007" legend, Putin has begun to be filmed as a thrilling detective film, which is brave and invincible. However, do you know how Putin actually embarked on the road of agents?

On June 21, local time, Russian President Vladimir Putin met with senior teachers from some middle schools in the Kremlin to discuss the education of senior students with them. During this period, he also shared his KGB job-hunting experience.

Influenced by movies as a child, Putin dreamed of being a special agent.

Stills of the Soviet movie Sword and Shield

Stills of the Soviet movie Sword and Shield

Putin recalled in his speech that the Soviet film Sword and Shield at that time had a great influence on his career choice.

"Sword and Shield" is adapted from Vajim Krevnikov’s novel of the same name. It describes the story of the struggle between the enemy and the enemy on the secret front during the Great Patriotic War and praises the immortal feats of the KGB hero of the Soviet national security department. Putin said that he was a little boy in middle school when he first saw the film, and he watched it many times later. This made him full of curiosity and yearning for the work of agents.

To this end, young Putin once ran directly to the Soviet KGB reception room.

Putin: I gave up math and physics courses directly to be a special agent.

Putin mentioned that since then I have completely given up physics, chemistry and mathematics, which is really true. I stopped studying these subjects directly because I need to master liberal arts courses, such as literature, foreign languages and history. My teachers are really wise, and I should thank them. Every time I look back, I am grateful. They saw at that time what I should do.

Putin: In addition to knowledge and practice, it is also very important. I have obtained a four-level woodworker certificate.

Putin also revealed that he wanted to be a pilot for some time, but after thinking, he thought that he was not interested in a single and modular life, so he gave up the idea. During the discussion, Putin said that it is not enough for middle school students to have profound knowledge, but also to love labor. He recalled that when he was young, he also obtained a certificate of carpentry level 4 in the construction team.

After graduating from the law department of Leningrad University in 1975, Putin was assigned to work in the National Security Council (KGB) and began his career as a KGB. After training in Moscow KGB College, Putin came to the First General Administration (General Administration of Foreign Intelligence) to engage in espionage.

For the history of working in the KGB, Putin believes that it is a cause of defending justice with personal conscience. Putin said: "I am sure that I defended the just cause at that time: I honestly worked for my country, worked for my motherland, and never thought of myself from morning till night. I know that I am doing something useful for my people. " Putin has no regrets about the experience of the KGB. He thinks that there is "nothing to be ashamed of". "I always try to be upset about nothing. Generally speaking, I am not upset about anything. It should be said that I am not upset about this matter. If everything is reversed, as people often say in this situation, I will still do the same thing. I have nothing to be shy about my past life. I was a very successful intelligence officer and I have been working for the interests of my motherland. "

Putin’s work has been praised many times. In 1987, the former East Germany held a commemorative meeting at the headquarters of the secret police in Dresden to commemorate the 70th anniversary of the October Revolution. At the meeting, Putin was awarded a gold medal in recognition of his firm belief in the cause and his outstanding contribution to the socialist country. In October 1990, Germany and Germany were reunified. The new Germany was called the Federal Republic of Germany and was a member of the North Atlantic Treaty Organization. It was impossible for the KGB, the official intelligence agency of the Soviet Union, to openly operate in Germany, and the KGB personnel in the former East Germany had to be evacuated in batches. The situation in Europe as a whole has changed against the Soviet Union, and the Soviet Union itself is in a precarious crisis. In 1990, the then Soviet President Gorbachev and the Federal Chancellor of Germany reached an agreement to withdraw Soviet troops from GDR. In this year, Putin volunteered to be transferred to the reserve, quietly returned to China, and returned to Leningrad.

The KGB has a glorious history. "KGB" (KGB) is the abbreviation of the National Security Council of the Soviet Union, and its history can be traced back to December 1917. At that time, in order to defend the emerging Soviet regime, dzerzhinsky and others set up an all-Russian committee to eliminate revolutionaries. In the following more than 70 years, the agency changed its name and surname many times, and finally entered history under the name of "KGB". During World War II, KGB agents, represented by sorge, penetrated into the enemy’s heart for a long time, providing valuable information for the strategic decision-making of the Soviet High Command. During the Cold War, "KGB" competed with the CIA and other western intelligence agencies, thus establishing an unshakable position in the world intelligence field. In the Soviet Union, the "KGB" even has the privilege over the Soviet state organs, and even the leaders of the Soviet Party, government and army are afraid of it. It can be said that the "KGB" once spread all over the world. Up to now, the intelligence and outstanding professional quality of these "one in a hundred" KGB are still admirable.

After the disintegration of the Soviet Union in 1991, it was restructured into the Russian Federal Security Service; The Russian Foreign Intelligence Agency was set up in the First General Administration, which is called "the world’s four major intelligence organizations" together with the US Central Intelligence Agency, British MI 6 and Israel Mossad.