Some 140 million Americans have had COVID-19 in the past, according to data from the Centers for Disease Control and Prevention (CDC).

The estimate is drawn from blood tests and would mean 43 percent of the American population has strong and long-lasting protection against COVID-19, the disease caused by the CCP (Chinese Communist Party) virus.

The blood samples are from commercial laboratories that have been working with the CDC to conduct seroprevalence surveys. They are testing for antibodies to the CCP virus, also known as SARS-CoV-2.