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

The World Health Organization has added the variant, known formally as XFG, to its monitoring list. A dry, irritated throat ...

Once again, a new strain of COVID has hit the country, and that includes Rhode Island. According to the Centers for Disease ...

Intense throat pain is a key symptom of COVID-19 variant NB.1.8.1, referred to as "razor blade throat." Here's what to know.

“One of the most noticeable symptoms of the Stratus variant is hoarseness, which includes a scratchy or raspy voice," ...

A new COVID-19 variant is spreading rapidly through the U.S. What to know about NB.1.8.1 and its symptoms in Tennessee.

A new COVID variant called Stratus—specifically its XFG.3 subvariant—accounts for 30% of UK cases and may cause a hoarse ...

A new Covid strain might trigger another "surge of infections, an expert has warned. The XFG variants, alternatively referred ...

It's related to the omicron variant and is spreading in the U.S. now, causing more than 40% of Covid-19 cases.

Reported symptoms of NB.1.8.1 are similar to other COVID-19 strains, but one distinctive complaint is a severe sore throat, ...

“Razor blade sore throat” has been reported as a symptom of Covid Nimbus by doctors and medical professionals internationally ...

A new Covid-19 variant called NB.1.8.1, or Nimbus, represents about a third of new US Covid-19 cases. Dr. Leana Wen answers common questions about the new variant.