BEIJING: Two COVID-19 vaccine candidates developed by units of China National Biotec Group (CNBG) to target the Omicron variant were approved for clinical trials as boosters in Hong Kong, the Sinopha… [+1096 chars]
BEIJING: Two COVID-19 vaccine candidates developed by units of China National Biotec Group (CNBG) to target the Omicron variant were approved for clinical trials as boosters in Hong Kong, the Sinopha… [+1096 chars]
