Regarding the question of whether it is necessary to vaccinate the new coronavirus vaccine, Wang Huaqing, chief expert of the immunization program of the China Centers for Disease Control and Prevention, made an explanation at a press conference of the Joint Prevention and Control Mechanism of the State Council on the 29th
State Council First, so far, there have been more than 6 billion doses of new crown vaccine in the world, and more than 2.
Second, real-world studies have shown that vaccines can prevent infections, and can reduce hospitalization, severe illness, and mortality
Third, the vaccine research and development class organized expert demonstrations on strengthening immunization
The Beijing Institute of Sinopharm and the Wuhan Institute, Kexing Zhongwei, and Kangxinuo have reported the results of clinical research on booster immunization based on the completion of the original vaccine immunization program
Six months after the inactivated vaccine or adenovirus vector vaccine was inoculated according to the original immunization schedule, the original vaccine was used for booster immunization, and no serious adverse reactions occurred; at the same time, after the original vaccine was used for booster immunization, the subjects were neutralized The antibody level increased rapidly and dramatically.
In addition, Zhong Keyuan study Biophysics showed that after booster immunization, antibody levels not only greatly enhance the third dose inactivated vaccine, antibody repertoire is broader, the ability to fight a variety of mutants is enhanced
Zhong ASTRI ASTRI Experts believe that the current situation of epidemic prevention and control in China is good, and the focus is on foreign import prevention.
Fourth, people with immunodeficiency or low immune function, and some people over 60 years of age, have relatively lower immune effects than those aged 18 to 59, and once they are infected, the rate of severe and critical illness is higher;
In addition, based on the needs of international exchanges, there are also some people in China who plan to go to or have gone to work, study, and exchange in countries (regions) with more severe epidemics
Wang Huaqing said that some areas have already begun to strengthen immunization of key populations in accordance with the needs of epidemic prevention and control.
(Liu Jie, CCTV reporter)
Focus on the new crown pneumonia epidemic
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