China has approved the inhalable vaccine for emergency use among populations aged 18 and above who had received two doses of traditional vaccines, but not within the previous six months.
A medical worker prepares inhalable COVID-19 vaccine doses at a community health service center in Tianxin district of Changsha, Central China's Hunan province, Dec 22, 2022. Inhalable COVID-19 vaccines are available at many vaccine sites in Changsha now as the epidemic continues to rage. 
A medical worker (L) instructs a resident to receive inhalable COVID-19 vaccine at a community health service center in Tianxin district of Changsha, Central China's Hunan province, Dec 22, 2022.
A resident (R) receives a dose of inhalable COVID-19 vaccine at a community health service center in Tianxin district of Changsha, Central China's Hunan province, Dec 22, 2022.
