Noticed in Colombia in January and actively circulating since in a number of nations of South America, the Mu variant is monitored by the WHO as a result of it presents mutations which might point out a danger of “immune escape”.
The World Well being Group (WHO) is monitoring a brand new variant of the coronavirus, dubbed “Mu”, which was first recognized in Colombia in January, she stated on the evening of Tuesday, August 31 to Wednesday. 1er September.
The variant – B.1.621 in keeping with scientific nomenclature – has to this point been categorized as “variant to observe”, stated the WHO in its weekly epidemiological bulletin on the evolution of the pandemic.
The WHO specifies that the variant has mutations that would point out a danger of “immune escape” (resistance to vaccines) and stresses that additional research are wanted to higher perceive its traits.
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All viruses, together with the SARS-CoV-2 accountable for Covid-19, mutate over time. Most mutations have little or no impact on the properties of the virus.
Nevertheless, sure mutations can have an effect on the properties of the virus and affect, for instance, how simply it spreads, the severity of the illness it causes, or the effectiveness of vaccines, medicine, diagnostic instruments or different social and public well being measures.
A prevalence of 39% in Colombia
The looks on the finish of 2020 of variants that introduced an elevated danger to international public well being led the WHO to characterize variants to be monitored and variants of concern, to be able to prioritize surveillance and analysis actions on the international degree.
The WHO has determined to call the variants to be tracked or of concern utilizing letters of the Greek alphabet, to be able to keep away from any stigmatization of a selected nation and to make it simpler for most people to pronounce the names.
At present, the WHO considers that 4 variants are of concern, together with the Alpha variants, current in 193 nations, and Delta, current in 170 nations, whereas 5 different variants are to be monitored (together with Mu).
The Mu variant was first detected in Colombia in January. It has since been reported in different South American nations and in Europe.
“Though the worldwide prevalence of the Mu variant amongst sequenced circumstances has declined and is presently lower than 0.1%, its prevalence in Colombia (39%) and Ecuador (13%) has steadily elevated,” the WHO defined. .