Omicron offshoot causes 75% of new cases

(CNN, KYMA/KECY) - The CDC is reporting that nearly 75% of new Covid-19 cases are caused by the XBB 1.5 sub-variant.

But public health officials say even though the omicron sub-variant is out-competing other viruses, it hasn't caused a big rise in new cases.

Instead the number of new cases has plateaued, with Covid-19 hospitalizations and deaths falling off, too.

That could be because the bivalent boosters have proven effective against the spread of XBB 1.5.

Anti-viral treatments like Paxlovid and Remdesivir, also continue to work against this sub-variant.