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

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

In a study released today by the Centers for Disease Control and Prevention, a single bivalent COVID-19 vaccine booster ...

The CDC has published real-world data showing the omicron booster cuts the risk of mid illness from the fast spreading XBB ...

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

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 ...

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

While the omicron subvariant is quickly becoming dominant in the U.S., CIDRAP notes that a feared-for bump in cases caused by people gathering over the holidays hasn’t yet been seen in the ...

Vaccine efficacy against symptomatic infection from XBB.1.5 varied by age range, with people ages 18-49 seeing the highest level at 49%.

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 ...

The fast-spreading Omicron XBB.1.5 is estimated to make up nearly half of U.S. COVID-19 cases, data from the Centers for ...