A new Covid strain, Stratus, is spreading rapidly across the UK, marked by a unique hoarse voice symptom, but vaccines remain effective and severity appears unchanged.

Imagine a virus so lethal that up to 90% of those infected don’t survive. That’s Marburg - a rare but extremely dangerous disease with no known cure. In this video, we explore its history, how it ...

The WHO has classified XFG or ‘Stratus’ as a variant under monitoring. It may well become the dominant variant globally very ...

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

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.