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Explainer: Beyond Delta, scientists are watching new coronavirus variants
August 9, 2021 09:49 am
CHICAGO, August 8: The continued spread of the SARS-CoV-2 virus has spawned a Greek alphabet of variants - a naming system used by the World Health Organization to track concerning new mutations of the virus that causes COVID-19. Some have equipped the virus with better ways of infecting humans or evading vaccine protection.
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