The third dose of COVID-19 is effective for more than half a year. Experts suggest that these people should be vaccinated with COVID-19 vaccine as soon as possible

Vaccine is actually a kind of inactivated virus or viral vector. It has viral characteristics, but it does not have activity and infectivity, so vaccination will not infect the virus. You can rest assured that you can vaccinate COVID-19 vaccine. Do you know how long the COVID-19 vaccine is effective? Let's introduce it in the following article.

For the monitoring data of COVID-19 vaccine, only half a year is available at present, not that the vaccine "can only protect half a year". The National Health Commission recently announced that based on the monitoring of antibody levels in vaccinated individuals, the vaccine's validity period is approximately 6 months or more. This is the current monitoring time of antibody levels, which does not mean that immunity is limited to these times. Moreover, antibodies are not the only indicator for measuring protection.

Human beings have been exposed to COVID-19 for more than a year, and the time for COVID-19 vaccine to come out is even shorter. So, the research on the immune persistence of vaccines is still under continuous observation. The Guiding Principles for Clinical Evaluation of novel coronavirus Vaccines for Prevention (Trial) issued by the State Drug Administration requires that COVID-19 vaccines on the market should be protected for at least six months. A study on the first vaccinated individuals found that they have now obtained antibody monitoring data for 9 months. Experts are also continuing to strengthen monitoring, and further observation is needed for longer-term protection effects.

For individuals, the protective effect of COVID-19 vaccination is not 100%, and it also takes some time to produce protective antibodies; For the population, COVID-19 is still easy to spread without forming an immune barrier. Therefore, in order to prevent the COVID-19 from rebounding, some prevention and control measures should be adhered to at this stage, including wearing masks, maintaining social distance, washing hands frequently, ventilation and other protective measures. The COVID-19 prevention and control measures for the population will be timely adjusted as the coverage of COVID-19 vaccination population increases and the epidemic situation of diseases at home and abroad changes.

No. The nucleic acid test is for COVID-19 antigen. The current COVID-19 vaccine is an inactivated vaccine, which is a kind of "killed" pathogenic microorganism, and has completely lost its infectivity and replication. Therefore, vaccination will not lead to COVID-19 infection, nor will COVID-19 nucleic acid test be positive due to vaccination. It is reported that the vaccines exported by China have been provided to elderly people for vaccination abroad. Based on current vaccination data, Chinese vaccines are safe and effective. Therefore, experts suggest that people over the age of 18, including the elderly, should be vaccinated with COVID-19 vaccine as soon as possible.

In addition, the experts emphasized that at this stage, minors cannot be vaccinated with COVID-19 vaccine because the clinical research data on children has not yet been released. In the absence of safety and effectiveness data support, minors are not open to COVID-19 vaccination globally. Clinical research on vaccines generally starts with adults, followed by older adults, and finally children.

Since children cannot be vaccinated with COVID-19 vaccine, what can parents do to protect their children? Experts suggest that adults should be fully vaccinated and establish a herd immunity barrier, with a population vaccination rate of 75% -85%. Since a small number of people with contraindications cannot get the COVID-19 vaccine, adults are required to make greater contributions to the vaccination rate.