COVID-19: Mu and C.1.2 Variants

cc Guilhem Vellut, Flickr, modified, https://flickr.com/photos/o_0/50637498101/in/photolist-2k9Eq16-2iQotJr-2iQotim-2iQkLEZ-2k9ERoB-2k9Er4U-2iPVeMi-2k9EreJ-2k9pZUQ-2miLRoG-2kZZeM3-2mgotGE-28VN4Rj-26dMzVE-2k9EPsn-2k9Azuw-787EzG-2k9ETXz-2k9EPTn-2k9kNRG-2k9EPN7-2iPQRiz-2k9EQUf-2iPQQAN-2iQqbXn-2k9kK6F-2k9ACKz-2k9pDxw-2k9pA97-2k9kL3q-6JEhr3-W6DRZ-6JEhr7-2k5qEHE-2k9kM9Z-2k9q3P7-2k5mQWk-2k9EtxM-2k9ADbp-2k9AzZQ-2k9EpCT-2kmqfRB-2k9pE4S-2k9q6cy-2k9EQ3A-2k9EpLD-2k9Ayrj-2mfPY7Z-2k9EsDx-2k9pCPC

Mu

The World Health Organization has identified the B.1.621 variant as a variant of interest (VOI), assigning it the ‘Mu’ letter from the Greek alphabet on August 30.

VOI is a lesser classification than variant of concern (VOC), which denotes a strain that is highly virulent and/or able to impinge preexisting public health measures such as vaccines, diagnostics, or therapeutics. Current VOCs include the Alpha, Beta, Gamma, and Delta variants.

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