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    An example of the United States breaking international rules

    An example of the United States breaking international rules

    Huawei and HSBC reached an agreement on the disclosure of documents in the Meng Wanzhou case, and Huawei responded.

    Huawei and HSBC reached an agreement on the disclosure of documents in the Meng Wanzhou case, and Huawei responded.

    Facebook blocked the Russian media program to commemorate the 60th anniversary of Gagarin's space flight, and the Russian government protested.

    Facebook blocked the Russian media program to commemorate the 60th anniversary of Gagarin’s space flight, and the Russian government protested.

    "Artificial Sun" nuclear safety parts completed and will be shipped to France for commissioning.

    “Artificial Sun” nuclear safety parts completed and will be shipped to France for commissioning.

    U.S. Mars helicopter postponed its first flight due to potential technical problems

    So short of staff? U.S. government mobilizes NASA employees to help care for migrant children

    Facebook responded to the leak of more than 500 million users' information: hackers caught it in 2019

    Facebook responded to the leak of more than 500 million users’ information: hackers caught it in 2019

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    Tottenham: Sack manager Jose Mourinho

    Tottenham: Sack manager Jose Mourinho

    Israel and Greece sign historic defense contract: deepening defense, economic and political ties

    Israel and Greece sign historic defense contract: deepening defense, economic and political ties

    There has been a sudden upheaval in European football! The Head of State of England and France made an urgent statement

    There has been a sudden upheaval in European football! The Head of State of England and France made an urgent statement

    Qatar plans to vaccinate all visitors to the 2022 World Cup

    Qatar plans to vaccinate all visitors to the 2022 World Cup

    An example of the United States breaking international rules

    An example of the United States breaking international rules

    Just half a month after joining, tennis star Aldridge announced his retirement due to a heart rhythm

    Just half a month after joining, tennis star Aldridge announced his retirement due to a heart rhythm

    Matsuyama City, Japan, cancels the Olympic torch relay after a number of coronavirus clusters

    Matsuyama City, Japan, cancels the Olympic torch relay after a number of coronavirus clusters

    More than 70% of Japanese people hope that the Tokyo Olympic Games will be cancelled or postponed again.

    More than 70% of Japanese people hope that the Tokyo Olympic Games will be cancelled or postponed again.

    Real Madrid officially announced that Ramos tested positive for COVID-19.

    Real Madrid officially announced that Ramos tested positive for COVID-19.

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    Zambia's Ministry of Health urged the public not to relax outbreak prevention and control after vaccination

    Zambia’s Ministry of Health urged the public not to relax outbreak prevention and control after vaccination

    EU head of vaccine procurement: May no longer renew contracts with AstraZeneca Pharmaceuticals

    EU head of vaccine procurement: May no longer renew contracts with AstraZeneca Pharmaceuticals

    "Medical Testing" in the UK to launch another human challenge trial

    “Medical Testing” in the UK to launch another human challenge trial

    Austria will purchase Russia's Coronavirus vaccine and start using it after approval by the European Medicines Agency

    Austria will purchase Russia’s Coronavirus vaccine and start using it after approval by the European Medicines Agency

    Thailand's Education Minister: Thai schools may be delayed due to Coronavirus outbreak

    Thailand’s Education Minister: Thai schools may be delayed due to Coronavirus outbreak

    UAE study: China's Coronavirus vaccine reduces hospitalization effectiveness by up to 93%

    UAE study: China’s Coronavirus vaccine reduces hospitalization effectiveness by up to 93%

    139 police officers at Kyoto Police Station in Bangkok, Thailand, have been quarantined after contracting Coronavirus

    139 police officers at Kyoto Police Station in Bangkok, Thailand, have been quarantined after contracting Coronavirus

    More than 200,000 new cases in a single day for 5 consecutive days! What has "magic" India experienced?

    More than 200,000 new cases in a single day for 5 consecutive days! What has “magic” India experienced?

    Alerts! British Prime Minister Boris Johnson has cancelled a visit to India

    Alerts! British Prime Minister Boris Johnson has cancelled a visit to India

    Crash Edge! New Delhi, India, declared a six-day total blockade

    Crash Edge! New Delhi, India, declared a six-day total blockade

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      An example of the United States breaking international rules

      An example of the United States breaking international rules

      Huawei and HSBC reached an agreement on the disclosure of documents in the Meng Wanzhou case, and Huawei responded.

      Huawei and HSBC reached an agreement on the disclosure of documents in the Meng Wanzhou case, and Huawei responded.

      Facebook blocked the Russian media program to commemorate the 60th anniversary of Gagarin's space flight, and the Russian government protested.

      Facebook blocked the Russian media program to commemorate the 60th anniversary of Gagarin’s space flight, and the Russian government protested.

      "Artificial Sun" nuclear safety parts completed and will be shipped to France for commissioning.

      “Artificial Sun” nuclear safety parts completed and will be shipped to France for commissioning.

      U.S. Mars helicopter postponed its first flight due to potential technical problems

      So short of staff? U.S. government mobilizes NASA employees to help care for migrant children

      Facebook responded to the leak of more than 500 million users' information: hackers caught it in 2019

      Facebook responded to the leak of more than 500 million users’ information: hackers caught it in 2019

      Trending Tags

      • Google
      • Apple
      • Microsoft
      • Xbox
      • Huawei
      • Science & Technology
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      • All
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      Tottenham: Sack manager Jose Mourinho

      Tottenham: Sack manager Jose Mourinho

      Israel and Greece sign historic defense contract: deepening defense, economic and political ties

      Israel and Greece sign historic defense contract: deepening defense, economic and political ties

      There has been a sudden upheaval in European football! The Head of State of England and France made an urgent statement

      There has been a sudden upheaval in European football! The Head of State of England and France made an urgent statement

      Qatar plans to vaccinate all visitors to the 2022 World Cup

      Qatar plans to vaccinate all visitors to the 2022 World Cup

      An example of the United States breaking international rules

      An example of the United States breaking international rules

      Just half a month after joining, tennis star Aldridge announced his retirement due to a heart rhythm

      Just half a month after joining, tennis star Aldridge announced his retirement due to a heart rhythm

      Matsuyama City, Japan, cancels the Olympic torch relay after a number of coronavirus clusters

      Matsuyama City, Japan, cancels the Olympic torch relay after a number of coronavirus clusters

      More than 70% of Japanese people hope that the Tokyo Olympic Games will be cancelled or postponed again.

      More than 70% of Japanese people hope that the Tokyo Olympic Games will be cancelled or postponed again.

      Real Madrid officially announced that Ramos tested positive for COVID-19.

      Real Madrid officially announced that Ramos tested positive for COVID-19.

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      Zambia's Ministry of Health urged the public not to relax outbreak prevention and control after vaccination

      Zambia’s Ministry of Health urged the public not to relax outbreak prevention and control after vaccination

      EU head of vaccine procurement: May no longer renew contracts with AstraZeneca Pharmaceuticals

      EU head of vaccine procurement: May no longer renew contracts with AstraZeneca Pharmaceuticals

      "Medical Testing" in the UK to launch another human challenge trial

      “Medical Testing” in the UK to launch another human challenge trial

      Austria will purchase Russia's Coronavirus vaccine and start using it after approval by the European Medicines Agency

      Austria will purchase Russia’s Coronavirus vaccine and start using it after approval by the European Medicines Agency

      Thailand's Education Minister: Thai schools may be delayed due to Coronavirus outbreak

      Thailand’s Education Minister: Thai schools may be delayed due to Coronavirus outbreak

      UAE study: China's Coronavirus vaccine reduces hospitalization effectiveness by up to 93%

      UAE study: China’s Coronavirus vaccine reduces hospitalization effectiveness by up to 93%

      139 police officers at Kyoto Police Station in Bangkok, Thailand, have been quarantined after contracting Coronavirus

      139 police officers at Kyoto Police Station in Bangkok, Thailand, have been quarantined after contracting Coronavirus

      More than 200,000 new cases in a single day for 5 consecutive days! What has "magic" India experienced?

      More than 200,000 new cases in a single day for 5 consecutive days! What has “magic” India experienced?

      Alerts! British Prime Minister Boris Johnson has cancelled a visit to India

      Alerts! British Prime Minister Boris Johnson has cancelled a visit to India

      Crash Edge! New Delhi, India, declared a six-day total blockade

      Crash Edge! New Delhi, India, declared a six-day total blockade

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      How long is the immune protection period for the coronavirus vaccine in the United States? At least half a year to a year

      December 14, 2020
      in Health
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      How long is the immune protection period for the coronavirus vaccine in the United States? At least half a year to a year

      Photo by Cao Zihao

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      According to AFP Washington, the American people will be vaccinated against the COVID-19 epidemic developed by Pfizer and Biotech from the 14th local time.

      It is reported that the first batch of vaccines will be issued on the 13th local time, and people will receive the vaccine on the 14th. 145 supply points will be established throughout the United States on the 14th, an additional 425 on the 15th and 66 on the 16th. The number of people who were vaccinated in the first batch of vaccines would reach 3 million.

      The Russian Satellite News Agency reported on December 13 that Alexander Ginzburg, director of the Russian Camalya Institute of Epidemiology and Microbiology, said that the immune protection period of the coronavirus vaccine “Satellite-V” may be about two years, and the vaccine protection period of Pfizer Pharmaceutical Company is four to five months, but these need to be It has been confirmed by experiments.

      Zhou Song, China’s general legal adviser of biology, said at the China International Trade in Services Fair in September that a total of two doses of inactivated vaccine for Chinese biology need to be vaccinated at intervals of 2-4 weeks, and the possibility of vaccine protection is relatively high for one to three years.

      They are all coronavirus vaccines. Why does the immune protection period range from a few months to three years?

      Zhang Hongtao, an associate professor at the University of Pennsylvania School of Medicine, said in an interview with the Health Times that there are two factors affecting the immune protection period of vaccines, one is antibodies, the other is antigens.

      After a person is infected with the virus, the activation of the human immune system will produce targeted antibodies, thus killing the virus. If the antibody degrades quickly and has a fast half-life, the immune protection time is short.

      For example, the coronavirus vaccine previously developed by Pfizer, according to the disclosed data, three months after vaccination, it can be inferred that the level of antibodies in the body should have a protection period of at least half a year to one year, but this is only a speculative data. How long the specific vaccine protection period can last or needs to be verified through clinical trials.

      On the other hand, the immune protection period is also related to the virus itself.

      Some viruses can obtain very strong immune protection after infection once to achieve lifelong immunity. For example, the multiple vaccines we vaccinated in infancy can benefit us for life. But like flu vaccine, because its antigen changes every year, the flu vaccine needs to be administered every year.

      Dr. Anthony Fauci, an infectious disease expert in the United States, has said that if the novel coronavirus is similar to other coronaviruses, its vaccine may not provide long-term immunity.

      The expected validity period is about 3-6 months, and the maximum period is not more than 1 year.

      The reporter inquired that the World Health Organization has set a “qualification threshold” for the protection period of the novel coronavirus vaccine in its “target product characteristics” document.

      Under the conservation persistence column, the World Health Organization clearly states that “the key feature or minimum requirement is to provide at least six months of protection, and the ideal feature is to provide at least one year of protection.”

      In addition, determining the immune protection period of the novel coronavirus vaccine requires observing a large number of people who have been vaccinated with effective vaccines to determine whether and when the infection rate of COVID-19 will rise with the vaccination time.

      Zhang Yujiao, a tenured professor at Anderson Cancer Center, said in an article official account on the 12th, “Since most of the third phase of the vaccine research began in July this year, and the longest observation time is less than half a year, we can only determine that the validity period is more than half a year at present. As for how long it will it will take, we have to wait for the data to talk.

      At the current state, it may be about a year, and hopefully longer.

      Tags: Covid-19

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