Mu variant: Should you be worried?

On August 31, a new Variant of Interest (which is a classification less severe than a “Variant of Concern”) was added to the World Health Organization’s weekly report: Mu. This has made a splash in the news. So, what is Mu and should we be worried?

What is Mu?

Mu has the scientific name of B.1.621 and was first discovered in Colombia in January 2021. It h…