ABC News reports:
Nearly 25 million Americans may have contracted the coronavirus, a figure ten times higher than the number of confirmed cases, the Centers for Disease Control and Prevention said Thursday.
In a briefing with reporters Thursday, CDC Director Robert Redfield said surveys of blood samples taken from around the country suggest that millions of Americans may have contracted the virus either without knowing it or with only minimal symptoms.
For every one confirmed case, Redfield said, the CDC estimates that ten more people have been infected. “This virus causes so much asymptomatic infection,” Redfield said. “We probably recognized about 10 percent of the outbreak.”