Is there a second generation of the new crown vaccine? Authoritative response from the vaccine research and development class

At the just-concluded service trade fair, the second-generation new crown vaccine was unveiled

Why develop a second-generation COVID-19 vaccine? Does the current generation of vaccines no longer work? When will the second-generation new crown vaccine be available? Where are you now?

On September 7, the State Council's Joint Prevention and Control Mechanism held a press conference.

Will the first-generation vaccine still work?

The data reported at the press conference showed that as of September 6, a total of 2.

So, against the mutant strains of the new coronavirus, will the first-generation vaccine still work?

Zheng Zhongwei believes that whether it is effective or not should be proved by real-world research results.

Zheng Zhongwei emphasized: "Even when the virus variants, especially Delta strains, are widespread

Whether it was the last round of epidemic prevention and control in Beijing or Guangzhou, the effect of vaccination was obvious to all

Why do we need a second-generation vaccine?

Since the first-generation vaccine is still effective, why should the second-generation vaccine be developed?

"Although the mutation of the new

A few days ago, the US Centers for Disease Control and Prevention (CDC) released a new study showing that as the delta variant of the new coronavirus dominates, the effectiveness of the new coronavirus vaccine in the United States has dropped from 91% to 66%

This real-world research result also makes the development of a broad-spectrum, multivalent second-generation vaccine imminent

In addition to the early start of vaccine research and development, relevant review and approval systems are also being actively deployed

According to Zheng Zhongwei, relevant institutions in China have also launched the formulation of guidelines for the review and approval of variant vaccines, and made some basic arrangements for the review and approval

how is the progress?

Regarding the mutant strains of the new coronavirus, each vaccine research and development unit has been carrying out a series of work on the development of vaccines against various mutant strains since the outbreak, especially since the emergence of mutant strains

According to Zheng Zhongwei, first, China's vaccine research and development units have carried out research on inactivated vaccines against gamma and delta strains.