(AP) -- What is the mu variant? It's a version of the coronavirus that was first identified in Colombia in January and has since caused isolated outbreaks in South America, Europe and the United ...

The new Mu variant of the novel coronavirus is more than seven times more resistant to antibodies created by vaccinations than the original strain of the virus, a study by a Japanese research team has ...

(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 ...