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

Updated Covid boosters cut the infection risk from XBB.1.5 subvariant by nearly half, CDC finds The report provides the first ...

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

The latest COVID variant of concern, XBB.1.5, continues to rise but still ... Some 27.6% of new cases nationwide are linked to the variant, the CDC currently projects, with a prediction interval ...

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

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

Throughout December, CDC Director Dr. Rochelle Walensky and White House COVID Response Coordinator Dr. Ashish Jha remained silent on the clear dangers of the XBB.1.5 variant and the pandemic more ...

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 ...

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