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 know about symptoms and vaccines.

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 ...

A new Covid variant called Stratus or XFG is spreading across 38 countries. The World Health Organisation is monitoring this ...

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

A fresh variant of Covid, presenting distinct symptoms and swiftly becoming prominent across the globe, has been identified.

Scientists say the current COVID vaccine is effective against the Nimbus variant and is considered a “variant under ...

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

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

The 'Stratus' Covid-19 variant is now the dominant strain in England, new data has revealed. Here are the symptoms of the XFG ...

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

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