C.D.C. Warns New Virus Variant Could Fuel Huge Spikes in Covid Cases
“We know that that’s an overestimate of the current level of vaccination that’s occurring,” said Michael Johansson, a researcher at the C.D.C. “But certainly, we hope that we get to levels that are higher than that by the time that this period ends.” All viruses accumulate mutations over time; most of the mutations disappear, but…
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