Expect more worrisome variants after omicron, scientists say
CDC encourages more Americans to consider N95 masks
15 January 2022COVID program delivers 1 billion doses to poorer countries
16 January 2022Expect more worrisome variants after omicron, scientists say
Get ready to learn more Greek letters. Scientists warn that omicron’s whirlwind advance practically ensures it won’t be the last version of the coronavirus to worry the world.
