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

Two new COVID-19 variants are spreading through the U.S., and medical providers in Connecticut are expecting an uptick in cases in the coming weeks.

COVID-19 cases are rising in about half of US states, signaling a summer wave driven by waning immunity and new variants like ...

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

Fresh surveillance shows COVID-19 is quietly heating up at the height of summer, fueling concerns about travel plans and back ...

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 ...

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

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.

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

A COVID-19 variant once considered rare has tripled in U.S. cases in the past two weeks, according to the Centers for Disease Control and Prevention. The mutated strain, called BA.2.86, accounts ...

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 ...

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.