A mask lies on a sidewalk. It’s hard to believe it's been five years since the start of the COVID-19 pandemic. Since 2020, the disease has killed more than 1.2 million Americans—more than in any other ...
World Health Organization officials first learned about a cluster of cases of pneumonia in the Hubei Province of China on Dec. 31, 2019. This represented the initial report of what soon became known ...
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