XBB.1.5

Los Angeles : New Omicron subvariant XBB.1.5 is estimated to account for 49.1 per cent of the Covid-19 cases in the US for the week ending January 21, according to data released by the US Centers for Disease Control and Prevention (CDC).…

Washington : The new Omicron subvariant XBB.1.5 is spreading quickly in the US, and is estimated to account for nearly 30 per cent of Covid-19 cases in the week ending January 7, according to the latest data from the Centers for Disease…