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.

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

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

The new variant has come out of seemingly nowhere, but now is fast becoming the dominant strain of the potentially deadly ...

A new strain of COVID-19, XFG, is spreading rapidly across the world, including in the United States. Anecdotally, people who ...

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

A new COVID variant that experts say may be slightly more infectious than other strains is circulating in the UK. The strain is dubbed 'Stratus' and there are two variants in circulation – XFG and the ...

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

“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 ...