UN health agency says initial data shows BA.2 is a little more infectious than earlier versions of Omicron.
source https://www.aljazeera.com/news/2022/2/2/omicron-sub-variant-found-in-57-countries-says-who
source https://www.aljazeera.com/news/2022/2/2/omicron-sub-variant-found-in-57-countries-says-who