At present, China's new crown vaccination is in progress, for the online spread of the vaccine protection period is only half a year, experts publicly responded that this is a misreading.
In addition,The second dose of new crown vaccine can be completed if the vaccination period is extended. Even if it is more than 8 weeks, there is no need to re vaccinate, as long as the non seeded dose can be completed.
Recently, Zhang Yuntao, vice president of Sinopharm China biology, said in an interview that during the whole clinical study, it was observed that the persistence of vaccine protection was about half a year, and the persistence of neutralizing antibody was also about half a year.
From the current data, there has been a certain level of antibody in the past nine months. Then, we will continue to strengthen monitoring in the future.
Zhang Yuntao revealed that in the clinical process of the overall design, the enhanced needle inoculation was designed to observe the antibody persistence and protection level. At present, the preliminary results show that the enhanced needle can effectively improve the neutralizing antibody titer, effectively improve the antibody persistence, and also effectively improve the ability of anti mutation of the vaccine.
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