Health officials are monitoring BA.3.2 through wastewater samples, though the variant poses low additional public health risk ...

A heavily mutated offshoot of the Omicron lineage has now been detected globally, the CDC reports.

In today’s Health Alert, a new COVID variant is showing up in more than two dozen states, including right here in Michigan. Early data suggest it may partially evade immunity due to its mutations.

The omicron variant of Covid-19 appears less likely than delta to lead to long Covid, according to British researchers. But because omicron is much more contagious than previous variants, the enormous ...

It only took about a month for BA.2.12.1, an Omicron subvariant, to cause most of the new COVID-19 cases in the U.S. since scientists first spotted it in the country. But even newer iterations of the ...

SAN FRANCISCO (KGO) -- Over a month ago, omicron's subvariant BA.2.12.1 became the dominant strain across the country. Fast forward to this week and now the CDC confirmed BA.4 and BA.5 combined are ...

The new omicron boosters are very effective at preventing seniors from being hospitalized with Covid, according to a new CDC study. U.S. health officials have focused in particular on making sure more ...

Omicron is mutating in giant leaps, with scientists racing to keep up. Its diversity is challenging vaccine efficacy and complicating treatment. But this fall, broad spectrum bivalent vaccines may ...