What we know about the mu variant and why Fauci is 'keeping a very close eye on it'
The mu coronavirus variant has spread across Peru, Chile, and some U.S. states. Experts say the variant isn't a threat but one to keep an eye on. |!| Ithaca
The mu coronavirus variant has spread across Peru, Chile, and some U.S. states. Experts say the variant isn't a threat but one to keep an eye on. |!| Ithaca