BEIJING, Dec. 14 (Xinhua) -- China will offer a second COVID-19 booster dose to certain groups who had received their first booster shot more than six months, authorities said Wednesday.
The targeted groups are people with a high risk of infection, elderly aged over 60 years old, people with serious underlying health conditions and those with low immunity, according to a circular released by the State Council joint prevention and control mechanism against COVID-19. ■
