Development of an inactivated vaccine candidate for SARS-CoV-2

Author:

Gao Qiang1ORCID,Bao Linlin2ORCID,Mao Haiyan3ORCID,Wang Lin1ORCID,Xu Kangwei4ORCID,Yang Minnan5ORCID,Li Yajing1ORCID,Zhu Ling5ORCID,Wang Nan5ORCID,Lv Zhe5ORCID,Gao Hong2ORCID,Ge Xiaoqin1ORCID,Kan Biao6ORCID,Hu Yaling1ORCID,Liu Jiangning2ORCID,Cai Fang1ORCID,Jiang Deyu1ORCID,Yin Yanhui1ORCID,Qin Chengfeng7ORCID,Li Jing1ORCID,Gong Xuejie1ORCID,Lou Xiuyu3ORCID,Shi Wen3ORCID,Wu Dongdong1ORCID,Zhang Hengming1ORCID,Zhu Lang1ORCID,Deng Wei2ORCID,Li Yurong1ORCID,Lu Jinxing6ORCID,Li Changgui4ORCID,Wang Xiangxi5ORCID,Yin Weidong1ORCID,Zhang Yanjun3ORCID,Qin Chuan2ORCID

Affiliation:

1. Sinovac Biotech Ltd., Beijing, China.

2. Key Laboratory of Human Disease Comparative Medicine, Chinese Ministry of Health, Beijing Key Laboratory for Animal Models of Emerging and Remerging Infectious Diseases, Institute of Laboratory Animal Science, Chinese Academy of Medical Sciences and Comparative Medicine Center, Peking Union Medical College, Beijing, China.

3. Department of Microbiology, Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China.

4. Division of Respiratory Virus Vaccines, National Institute for Food and Drug Control, Beijing, China.

5. CAS Key Laboratory of Infection and Immunity, National Laboratory of Macromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China.

6. National Institute for Communicable Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Changping, Beijing, China.

7. Institute of Microbiology and Epidemiology, Academy of Military Medical Sciences, Beijing, China.

Abstract

Vaccine candidate tested in monkeys Global spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has led to an urgent race to develop a vaccine. Gao et al. report preclinical results of an early vaccine candidate called PiCoVacc, which protected rhesus macaque monkeys against SARS-CoV-2 infection when analyzed in short-term studies. The researchers obtained multiple SARS-CoV-2 strains from 11 hospitalized patients across the world and then chemically inactivated the harmful properties of the virus. Animals were immunized with one of two vaccine doses and then inoculated with SARS-CoV-2. Those that received the lowest dose showed signs of controlling the infection, and those receiving the highest dose appeared more protected and did not have detectable viral loads in the pharynx or lungs at 7 days after infection. The next steps will be testing for safety and efficacy in humans. Science , this issue p. 77

Funder

National Key Research and Development Program

Ten Thousand Talent Program and the NSFS Innovative Research Group

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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