COVID-19 variant XFG accounted for 0% of U.S. cases in May. By late-June, it became the third-most common strain.

A new variant of the virus that causes COVID-19 is spreading in the U.S., raising concerns about a potential wave of ...

The World Health Organization (WHO) on March 11 declared COVID-19 a pandemic, pointing to the over 118,000 cases of the coronavirus illness in over 110 countries and territories around the world and ...

Add Yahoo as a preferred source to see more of our stories on Google. Getty Images An alleged warning has spread online for years about a supposed "new COVID-Omicron XBB variant" — a new strain of the ...

A painful sore throat, often referred to as "razor blade throat", is just one of the symptoms of a new COVID-19 variant. This variant is currently being monitored by the World Health Organization.

Largely ignored by governments and trade unions, a new SARS-CoV-2 variant is spreading at great speed: the “Stratus” or “Frankenstein” variant, XFG. It is causing high levels of sickness absence in ...

SARS-CoV-2 infections have been rising in the past month — global cases increased by more than 19,000 last month compared with the previous month, according to data posted on the World Health ...

JOHANNESBURG — South Africa has reintroduced tough restrictions including a ban on alcohol sales and an extended nightly curfew as it fights a fast-increasing surge of COVID-19 cases. President Cyril ...

As the respiratory illness season begins, COVID cases have remained relatively under control in the United States into the beginning of fall. While the United States by and large is experiencing ...

As states grappled with confusion around vaccines, COVID-19 cases have continued to fluctuate nationwide. Some regions of the United States are experiencing "very high" COVID viral activity, according ...