COVID-19 cases are rising during the 2025 summer wave. CDC data shows increases in 26 states and Washington, D.C., linked to ...

The data, from the Centers for Disease Control and Prevention, also showed a significant increase in COVID-related emergency ...

A contagious new COVID-19 variant called NB.1.8.1, aka "Nimbus," is now dominant in the United States, CDC data show. What to ...

A new Covid-19 variant, Stratus (XFG or XFG.3), also known as “Frankenstein” due to its recombinant nature, has been ...

Variant NB.1.8.1 accounted for 0% of U.S. cases in April. By mid-June, it was estimated to be the cause of around 37% of cases.

A new COVID-19 variant named "Nimbus" has been detected in the U.S. and is spreading rapidly. Here's what to know about symptoms and vaccines.

The Centers for Disease Control and Prevention has detected a new set of COVID-19 variants nicknamed FLiRT in wastewater surveillance, according to data from the agency. From April 28 through May ...

Scientists are currently studying how well people are protected against severe disease from XFG. Researchers conducted lab ...

NB.1.8.1 is one of the latest variants of COVID-19, a "slightly upgraded version" of the LP.8.1 variant that is prominent ...

A newer COVID-19 variant may be causing a severe sore throat in those who contract the infections. Here's what to know about ...

New research by the University of Sydney offers important insights into how and when new coronavirus variants arise in bats.

New coronavirus variants are an urgent threat. Here’s what you need to know. Paramedics return from delivering a patient at the emergency room at St. Francis Medical Center in Lynwood on Jan. 21.