Chilean study: only the first dose of China’s Kexing vaccine can not protect against immunity and only 3% | International | Newtalk

Chile has launched the Wuhan pneumonia (COVID-19) vaccine in February this year. The vaccine is mainly from China Kexing, which accounts for 93% of the vaccine administered in Chile. So far, 7.07 million people have received the first dose of vaccine. , 4.04 million people have finished two doses.