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On May 28, the China Centers for Disease Control and Prevention released on its official website the monitoring of adverse reactions in my country's new crown vaccination.
Among them, there were 26,100 general reactions, accounting for 82.
At present, six new crown vaccines in my country have been approved for marketing (including approval for emergency use), including two inactivated vaccines from China Biological, one inactivated vaccine from Kexing Biological, recombinant protein vaccine from Zhifei Biological, and Kangsino Adenovirus vector vaccine and Kangtai biological inactivated vaccine.
1.
1.
The results of the study show that the two new inactivated vaccines of China Biology can produce high-titer antibodies and form effective protection 14 days after two injections.
It is worth mentioning that the trial revealed that the protective effect of the WIV04 vaccine against confirmed COVID-19 cases after the first injection was 50.
2.
2.
The protective efficacy of 50.
The interim results of the Phase III trial disclosed in Turkey in December 2020 showed that the effective rate of Kexing Biovaccine reached 91.
3.
3.
4.
4.
5.
5.
Kangtai Bio: Inactivated vaccine
On May 14, Kangtai Biologics inactivated vaccine was approved for emergency use.
On April 8, the Phase I/II clinical trial data of KCONVAC's inactivated vaccine (KCONVAC) was published on medRxiv.
The results showed that KCONVAC has good immunogenicity and tolerability, and the neutralizing antibody titer is comparable to that of recovered patients.
Up to 2.
65.
According to vaccine expert Tao Lina, considering the clinical data of different new crown vaccines, the neutralizing antibody titer of mRNA vaccine and the serum ratio of recovered patients are about 3.
8~4.
1 times, the recombinant protein is about 2 times, and the adenovirus vector is about More than 1 times, the inactivated vaccine is about 1 times or less than 1 times.
Judging from this indicator, Kangtai Biologics inactivated vaccine is expected to become the best variety among the new crown inactivated vaccines.
