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Expect more worrisome variants after omicron, scientists say
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Expect more worrisome variants after omicron, scientists say

by Laura Ungar  People wait in line at a COVID-19 testing site in Times Square, New York, Monday, Dec. 13, 2021. Scientists are warning that omicron’s lightning-fast spread across the globe practically ensures it won’t be the last worrisome coronavirus variant. And there’s no guarantee the next ones will cause milder illness or that vaccines...