He said he was especially concerned about the South African variant, which he described as “different and more ominous than the one in the UK.”
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Dr. Anthony Fauci, who leads infectious-disease research at the National Institutes of Health, says the vaccines produce a positive “cushion” against the new strains, which spread quickly, though it’s important to be proactive.
Moderna tests revamped COVID-19 vaccine to target South Africa strain →
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