摘要
Coronavirus disease 2019(COVID-19),caused by the severe acute respiratory syndrome coronavirus 2(SARS-CoV-2),has caused millions of infections and deaths worldwide since its emergence in December 2019.As there is little or no natural immunity in the human population or specific anti-COVID-19 drugs,researchers from the government,academia and industry are developing vaccines at an unprecedented speed to halt the pandemic.In this review,the results of animal experiments and clinical trials on several vaccine technical platforms are summarized,and several challenges are also discussed to further promote the development,evaluation and application of vaccines during the challenging situation of the global pandemic.
基金
supported by the National Key R&D Program of China(2020YFC0849700)
the Program of Chinese Academy of Medicine Science
the Major Science and Technology Special Projects of Yunnan Province。