“According to a Centers for Disease Control and Prevention survey of blood donor samples, conducted in December and updated last month, an estimated 95% of Americans ages 16 and older have developed identifiable Covid antibodies,” CNBC reported on Tuesday. “Those come from both vaccinations — roughly 77% of the U.S. population has received at least one Covid vaccine dose, according to the CDC — and prior Covid infections.”

On Wednesday, CDC Director Rochelle Walensky testified before the House Select Subcommittee on the Coronavirus Crisis. She referenced the 95% immunity figure in her testimony.