Chinese health experts warn of new Covid-19 variants as highly transmissible Omicron strain BF.7 spreads like wildfire Vishal Singh Wednesday, 21 December 2022 Facebook Twitter Highly transmissible Omicron strains, mainly BA.5.2 and BF.7, are currently driving China's Covid-19 surge. from Zee News :World https://ift.tt/AV2qRg6 LihatTutupKomentar Post Selanjutnya Post Sebelumnya