The CDC study provides the first estimate of the omicron shots’ real-world effectiveness against the XBB family of ...

County officials cited a new study released by the Centers for Disease Control and Prevention as they continue to urge local ...

CDC data shows the bivalent COVID vaccines protect against the omicron variant known as XBB and its subvariant XBB.1.5.

The updated COVID-19 booster shots are at least 40% effective against symptomatic infection from omicron subvariants XBB.1.5 ...

Opens in a new tab or window Currently authorized bivalent COVID-19 boosters demonstrated similar protection against ...

The updated Covid boosters reduce the risk of Covid infection from the predominant omicron subvariant by nearly half, ...

The Omicron subvariant XBB. has likely become the dominant variant in the United States, accounting for 61.3% of COVID cases in the week ended Jan. 28, data from the U.S. Centers for Disease Control ...

New data from the Centers for Disease Control and Prevention (CDC) indicates that the updated bivalent COVID-19 vaccines do ...

XBB.1.5 is a spinoff of XBB, a subvariant of omicron that health officials worldwide have been warning about since the fall.

XBB.1.5's prevalence remains highest in ... is growing in proportion quickly," Barbara Mahon, head of the CDC's proposed Coronavirus and Other Respiratory Viruses Division, told CBS News last ...

A booster dose provided at least 3 months of protection against symptomatic XBB and XBB.1.5 infections in seniors who had ...

Early data published by the CDC Wednesday offers evidence that Moderna and Pfizer’s updated bivalent booster shots — tailored last summer for the omicron subvariants BA.4 and BA.5 omicron ...