The B.1.621 or “mu” variant is a type of the SARS-CoV-2 coronavirus that was first recognized in Colombia in January 2021. Outbreaks of the ‘mu’ variant have additionally been recorded in another nations in South America and Europe.
The World Well being Group designated B.1.621 a variant of curiosity in August 2021. In response to the WHO, the variant has mutations which will confer “potential properties of immune escape”. This might imply present vaccines are much less efficient towards this variant, however extra research are wanted to search out out if that is so.
“Since its first identification in Colombia in January 2021, there have been a number of sporadic stories of instances of the mu variant and a few bigger outbreaks have been reported from different nations in South America and in Europe,” a WHO bulletin stated on 31 August. “Though the international prevalence of the mu variant amongst sequenced instances has declined and is at the moment beneath 0.1 per cent, the prevalence in Colombia (39 per cent) and Ecuador (13 per cent) has constantly elevated.”