Here's what is known about the new Covid XFG, or 'Stratus', variant from UK cases and symptoms to what the World Health Organisation has said ...

From ticks to horse flies, learn how to spot serious insect bites, ease symptoms and when to get medical help.

A new Covid variant nicknamed Stratus has become the dominant strain spreading in the UK. Also known as XFG, it was first ...

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 ...

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