Viruses evolve constantly and many new variants often fade away. So far, the mu variant does not seem to be spreading quickly: It accounts for fewer than 1 per cent of Covid-19 cases globally.

If Mu was truly a really bad variant, we would have expected to have started to see indications of this, and we haven’t yet. By Paul Griffin (*) - This week the World Health Organization named a ...

Viruses are masters at disguise. When they are pushed too far by our immune system, they send new virus variants into play ...

Mu variant tracker: These maps show WHO’s COVID-19 ‘variant of interest’ and where it’s spreading The mu variant, or B.1.621, was labeled a “variant of interest” by the World Health ...

A new Covid-19 variant has entered the scene, becoming the most prevalent strain in the U.S. However, it may not be as dangerous as the ones that came before. "At this time, there is no evidence ...

Researchers have come up with a new way to identify more infectious variants of viruses or bacteria that start spreading in humans - including those causing flu, COVID, whooping cough and ...

A new Covid variant is spreading in England and is behind an outbreak at a care home in Norfolk, health officials say. There have been 34 confirmed cases of BA.2.86, with 28 of those at the care home.