tube of blood labeled positive for COVID-19 Mu variant
What We Know About Mu, the WHO’s Latest Variant of Interest
The SARS-CoV-2 variant was first detected in January, but its rising prevalence and potential resistance to vaccines has garnered it special attention from the World Health Organization.
What We Know About Mu, the WHO’s Latest Variant of Interest
What We Know About Mu, the WHO’s Latest Variant of Interest

The SARS-CoV-2 variant was first detected in January, but its rising prevalence and potential resistance to vaccines has garnered it special attention from the World Health Organization.

The SARS-CoV-2 variant was first detected in January, but its rising prevalence and potential resistance to vaccines has garnered it special attention from the World Health Organization.

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variants of interest
Black and white world map, with lines connecting red areas that indicate COVID-19 hotspots, along with overlaid drawings of SARS-CoV-2.
WHO Updates the Nomenclature of SARS-CoV-2 Variants
Lisa Winter | Jun 1, 2021
Rather than being described by the location of where they emerged or an alphanumeric code, variants will be given a Greek letter.