Covid-19: should we be worried about the appearance of new variants?


DECRYPTION – Coming from Colombia, the “Mu” variant has just been classified by the WHO as a “variant to watch”. In South Africa and Japan, two other variants were detected by researchers.

As if they had chosen the end of summer to proliferate. While the Delta variant has spread at breakneck speed and now represents 84% ​​of the sequences deposited in the international database GISAID, three new mutants have been the subject of a special alert since the beginning of the week. Starting with the variant originally detected in Colombia. Tuesday, August 30, the World Health Organization (WHO) classified this new mutation of the coronavirus, called “Mu“, like “variant to follow“, The status lower than that of the so-called”worryingWhich are currently the Alpha, Beta (said South African), Gamma (said Brazilian) and Delta (said Indian) variants.

The variant “Mu and his risk of vaccine resistance

Developed in Colombia, the variant B.1.621, renamed with the Greek letter “MuWas first detected in Colombia in January 2021. It has since spread to at least 40 countries, and 49 US states. In France, 79 cases had been detected as of August 10, the majority of which

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