WHO responded to a report about the ability of the mu strain to bypass antibody protection

More research on the new “mu”-strain COVID-19 (B.1.621) is needed to confirm its resistance to existing vaccines, the World Health Organization told RIA Novosti

The WHO noted that the “mu” variant was first identified in Colombia in January 2021 and was designated as a variant of interest on August 30 because it has some mutations that could potentially affect immunity production.

“Data provided by the WHO Working Group on Viral Evolution suggest that immunity developed through prior infection or vaccination may not be as strong against this variant. More research is needed to confirm this,” the WHO press office said.