(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 ...

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 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 ...

The mu variant is the fifth variant strain to earn the title of "variant of interest" from the WHO. Among the other variants tracked by the WHO is the delta variant — a mutant strain proven to be more ...

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 ...

SAN JOSE, Calif. (KGO) -- As long as there is on-going COVID-19 transmission somewhere in the world, there will be new variants. That's according to infectious disease expert, Dr. Jorge Salinas with ...