BEIJING, May 23 (Xinhua) -- More than 217 million Chinese aged 60 or above, or 82.3 percent of the country's senior citizens, have been fully vaccinated against COVID-19, an official said Monday.

A senior citizen receives a dose of COVID-19 vaccine at a mobile COVID-19 vaccination site in Beijing, April 9, 2022. [Photo/Xinhua]

Among them, nearly 167 million have received a booster shot, Lei Zhenglong, an official with the National Health Commission, told a press conference.