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threat

Covid Delta variant not instant menace to U.S.

Dr. Scott Gottlieb told CNBC on Wednesday he believes enough Americans are fully vaccinated to delay the risk presented by the Delta Covid variant."The question is: Are there enough unvaccinated people that this could get into the…

Airborne Coronavirus Is a Risk, the C.D.C. Acknowledges

The federal health authorities updated the public guidelines on the spread of the coronavirus on Friday, emphasizing that the transmission occurs through inhalation of very fine respiratory droplets and aerosolized particles, as well as…