Director of Centers for Disease Control and Prevention (CDC), Rochelle Walensky said, “Over 99% cases in the United States are of Delta variant.”
“These cases are still driving an increase in hospital admission,” Rochelle added.
Director of Centers for Disease Control and Prevention (CDC), Rochelle Walensky said, “Over 99% cases in the United States are of Delta variant.”
“These cases are still driving an increase in hospital admission,” Rochelle added.