Dr. Birx was asked about this today. They admitted that the CDC is not prepared to do large-scale antibody testing.
They dropped the ball on this in just about every way they possibly could.
Oh BS. You have to know its a problem and have the time to develop the anti-body test in order to do widespread anti-body tests. You don't just find these kits on the shelf at CVS.
Yup, appears most of the world did.
The CDC are laboratory researchers not doctors. The USPHS has been dealing with this stuff for a 100 years on the front line. It was a USPHS doctor in his khakis who gave me my first polio shot when they came to our school on Manhattan when I was in second grade