A COVID-19 variant with a catchy nickname is causing concern, despite making up a small fraction of current cases.
A "highly mutated" strain of COVID-19 that previously stayed "underground" has been found in 25 US states and 23 countries so ...
A new, heavily mutated COVID variant has been detected in 25 states and 3 U.S. airports.
A "highly mutated" COVID variant that has been detected in at least 25 states is gaining ground, according to health authorities.