The hospital announced the results of the SARS-CoV-2 mutation screening in the last half of 2022 in Ho Chi Minh City.

XBB, also known as strain BA.2.10, has been detected elsewhere in the world since August 2022 and is currently the main variant of the SARS-CoV-2 virus in the US, accounting for 40.5% of new cases in this country in the past week (December 25-31).