CDC: At Least 20 Million Americans Have Had Coronavirus. Here's Who's At Highest Risk

Millions of Americans have probably had the coronavirus without knowing it.
That's the conclusion of officials at the Centers for Disease Control and Prevention and many other experts.
"Our best estimate right now is that for every case that was reported, there actually were 10 other infections," Dr. Robert Redfield, the director of the CDC, said during a call with reporters Thursday.
Redfield estimates that between 5% and 8% of the U.S. population has been exposed. He points to results from communitywide antibody tests and other surveillance measures that point to this range. But, he emphasizes, that leaves more than 90% of Americans who have yet to be exposed and who remain susceptible.
To date, 2.3 million Americans have had confirmed coronavirus infections, but by the CDC's estimates, the real number could be at least 20 million.
The estimates validate what many public health researchers suspected — that the health system has failed to capture much of the spread of the virus within some communities.