China's research and development of new crown recombinant protein vaccine three-dose program in many places, one after another

China news agency, Beijing, May 28 (Reporter Sun Zifa) - Reporter on the 28th from China Ke Xueyuan Institute of Microbiology ( Zhong Keyuan microorganisms) was informed by the company of the joint research and development with a three-dose schedule, the first approved clinical International The new coronavirus recombinant subunit protein vaccine used, the first injection was started in Beijing on the 27th.

So far, the new crown recombinant protein vaccine, one of China’s five vaccine technology routes, has been approved for emergency use in China in mid-March and has been successively used in Anhui, Zhejiang, Jiangsu, Shandong, Guizhou, Hubei, Henan, Beijing and other provinces.

The new crown recombinant protein vaccine (Chi Parkway was) by the Zhong Keyuan microorganisms high-fu Academy of team research and joint research and development company in Anhui Chi Dragon Coma, fourth paragraph is China approved the emergency use of a new vaccine crown.

Zhong Keyuan microorganisms, the new crown recombinant protein vaccine with three-dose schedule, its technical principles and have been used for very mature hepatitis B vaccine similar.

A phase II clinical trial of the vaccine in adults aged 18-59 showed that after the subjects received 2 doses, the neutralizing antibody positive conversion rate reached 83%, and after the subjects received 3 doses, the neutralizing antibody positive conversion rate Up to 97%.

Zhong Keyuan microorganisms In particular, the new crown recombinant protein vaccine produced using CHO production of recombinant proteins, do not need high-level biosafety laboratory production workshop, the production process is stable and reliable, quick implementation of large-scale industrial production, significantly reducing the cost of vaccine production, And it is convenient to store and transport.

It is understood, May 3, Beijing successfully off the assembly line production of the first batch of the new crown recombinant protein vaccine, May 27, from the vaccine research and development base Zhong Keyuan part of researchers microorganisms in " Zhong Keyuan vaccination special" Inject the first shot of its three-shot procedure.