Dr. Rochelle Walensky, director of the Centers for Disease Control and Prevention, issued a stark warning Thursday about the spread of the delta strain of COVID-19, saying the variant is one of the “most infectious respiratory viruses” scientists know of.
The dire message comes amid urgency from public health officials that Americans get vaccinated. The CDC said earlier this week that cases of the delta strain now make up about 83% of new infections in the U.S., and a majority of deaths from the disease are among unvaccinated people.
