The World Health Organization is monitoring a new coronavirus variant called “mu,” which the agency says has mutations that have the potential to evade immunity provided by a previous Covid-19 infection or vaccination.
Mu — also known by scientists as B.1.621 — was added to the WHO’s list of variants “of interest” on Aug. 30, the international health organization said in its weekly Covid epidemiological report published late Tuesday (31). This variant was first identified in Colombia in January.
The variant contains genetic mutations that indicate natural immunity, current vaccines or monoclonal antibody treatments may not work as well against it as they do against the original ancestral virus, the WHO said. The mu strain needs further study to confirm whether it will prove to be more contagious, more deadly or more resistant to current vaccines and treatments.
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