What is XBB? The new ‘immune-evasive’ COVID strain that combines Omicron variants is driving cases in two countries

The XBB COVID subvariant combines Omicron strains and is driving cases in Singapore and Bangladesh.
Let's talk about notable events during the history of COVID. You can read more about COVID at the WHO Hub Page.
Last Update: Mon, January 27, 2025 at 6:59 PM
The XBB COVID subvariant combines Omicron strains and is driving cases in Singapore and Bangladesh.