A new study shows that receiving an updated COVID vaccine reduced people’s risk of severe disease and death in all age groups ...
Sinovac Biotech's experimental COVID-19 vaccine CoronaVac triggered a quick immune response but the level of antibodies produced was lower than in people who had recovered from the disease, ...
Covid-19 has infected more than 234M people and killed at least 4.7M globally. Here are the virus-related developments for September 30: ...
The Brazilian government will include China's Sinovac vaccine against COVID-19 in its national immunization program, state governors said on Tuesday after a meeting with the country's health minister, ...