The Centers for Disease Control and Prevention listed the COVID-19 delta variant as one of its "variants of concern" (VOCs) on June 15. According to the CDC, VOCs can be more contagious, more ...

(NEXSTAR) – The World Health Organization has identified another coronavirus variant that may have the ability to evade vaccine protections. The B.1.621 variant, also known as the “mu” variant, was ...

Share on Pinterest A new SARS-CoV-2 variant of interest has emerged. Christoph Hetzmannseder/Getty Images The World Health Organization (WHO) identified Mu (B.1.621) as a new SARS-CoV-2 variant of ...

The World Health Organization has added the "mu" strain to its list of COVID-19 "variants of interest." The strain, also know as B.1.621, was first documented in Colombia in January 2021 but didn’t ...

The fast-spreading delta variant remains the "most concerning" coronavirus strain despite the emergence of the mu variant, World Health Organization officials said Tuesday. The mu variant, which was ...

Mu variant tracker: These maps show WHO’s COVID-19 ‘variant of interest’ and where it’s spreading The mu variant, or B.1.621, was labeled a “variant of interest” by the World Health Organization. Here ...

Dr. Anthony Fauci on Thursday said U.S. public health officials are “keeping a very close eye” on a new variant of Covid-19 that was first detected in Colombia. Known as B.1.621 or the “Mu variant” ...