New NIH study says the coronavirus was present in five states in December 2019 - MarketWatch

At least nine people in Illinois, Massachusetts, Mississippi, Pennsylvania, and Wisconsin demonstrated that they had developed COVID-19 antibodies in early January 2020, according to the National Institutes of Health study, published Tuesday in the journal Clinical Infectious Diseases.

Federal health officials confirmed the first case of COVID-19 in the U.S.

The NIH researchers examined 24,000 blood samples from 50 states between Jan.