The new crown vaccines that have been vaccinated in the world are basically urgently authorized and have not been officially approved. Today, the US Food and Drug Administration officially approved the vaccination of Pfizer new crown vaccine for people aged 16 and over.
CCTV reported that,This is the first new crown vaccine fully approved by the U.S. Food and drug administration.
Since mid December 2020, Pfizer vaccine has been authorized for emergency use in the United States for people aged 16 and over.
In May this year, the authorization was extended to people aged 12 and over. At present, among more than 170 million people who have been fully vaccinated with the new crown vaccine in the United States, more than 92 million people have been vaccinated with Pfizer vaccine.
Previously, the United States urgently authorized Pfizer, Modena and Johnson & Johnson three new crown vaccines. Some health experts in the United States expressed the hope that the full authorization of Pfizer vaccine can further enhance people's confidence in the vaccine and increase the number of vaccinated people.
Pfizer's vaccine is jointly developed with German BNT company. It is one of the only two approved mRNA vaccines in the world, with a protection rate of more than 94%. However, in front of the delta mutant strain, more and more people are also breakthrough infected.
The latest research shows that after the delta strain became the main source of transmission in the United States in July,The effectiveness of Pfizer vaccine in preventing infection with COVID-19 dropped to 42%.
But Pfizer Inc said Pfizer vaccine is still very effective in preventing the mutation of COVID-19. Up to now, no mutation has been found to protect COVID-19 from the vaccine.
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Please indicate the source of Reprint: fast technology