China News Service, April 12. "A latest study in Hong Kong shows that three doses of the new coronavirus vaccine can reduce the risk of severe illness and death by more than 90%." On the 12th, the State Council's joint prevention and control mechanism will strictly control the epidemic. A press conference on the prevention and control work was held, and Wang Huaqing, chief expert of the immunization program of the Chinese Center for Disease Control and Prevention, made the above statement when answering questions from reporters.
Wang Huaqing pointed out that Omicron mutants are popular. In fact, with the passage of time, the effect of vaccines on infection and disease prevention has weakened over time. I have also seen the phenomenon of immune escape of Omicron mutants, but I have also seen , the vaccine is still very effective in preventing severe illness and death caused by the Omicron variant.
Wang Huaqing said that in addition, a new study in Hong Kong on April 8 showed that among people over 60 years old, the relative risk of death caused by no vaccination was 21 times that of those who received two or more doses.
Wang Huaqing said that according to the information released by the Hong Kong Department of Health, the case fatality rate was 2.87% among the unvaccinated population, 0.14% among those who received two doses, and 0.03% among those who received three doses. .
Compared with the unvaccinated, the difference is 20 times and 95 times respectively. It can be seen from this that the vaccination of the new coronavirus has a very good effect on preventing the new crown and preventing severe disease and death caused by the Omicron strain.