WHO Warns of Colombian COVID-19 Mu Variant, B.1.62

The World Health Organization said it is monitoring another new COVID-19 variant with mutations that the agency fears could make it resistant to vaccines.

The Colombian Mu variant, also known as B.1.621, was added as a “variant of interest” to the organization’s watch list Monday.

“The Mu variant has a constellation of mutations that indicate potential properties of immune escape,” the bulletin said.