The delta Covid variant is one of the most infectious respiratory diseases ever seen by scientists, CDC director says.
The delta Covid variant is one of the most infectious respiratory diseases seen by experts.97% of people admitted to hospitals with Covid symptoms are unvaccinated.The delta Covid variant is one of the most infectious respiratory diseases ever seen by scientists, the director of the Centers for Disease Control and Prevention said Thursday.
The variant is highly contagious, largely because people infected with the delta strain can carry up to 1,000 times more virus in their nasal passages than those infected with the original strain, according to new"The delta variant is more aggressive and much more transmissible than previously circulating strains," CDC Director Dr. Rochelle Walensky told reporters at a briefing Thursday.
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