The more contagious omicron BA.2 subvariant now makes up 72% of Covid infections that have undergone genetic sequencing in the U.S., according to data from the Centers for Disease Control and ...

BALTIMORE, Md — With spring in bloom and more people heading outdoors, the past COVID-19 winter may seem like a distant memory. Yet, the omicron variant isn’t fading away. “There were three different ...

SAN FRANCISCO -- There's a new "subvariant" of the omicron variant that's been spreading across Europe and the U.S. Preliminary data shows it's more contagious than omicron. Scientist have named it BA ...

The more contagious omicron subvariant, BA.2, is now the dominant version of Covid-19 in the U.S., according to data released by the Centers for Disease Control and Prevention this week. Stream Los ...

The omicron subvariant BA.2 appears to have the same severity as the original omicron strain, a World Health Organization official said Feb. 2. The subvariant appears to be “overtaking BA.1 but does ...