States Are Combining Test Results

It is certainly concerning when we make broad, sweeping policy decisions based on suspect data. At the very least, this makes comparisons between states difficult.

(CNN)At least four states combined data from two different test results, potentially providing a misleading picture of when and where coronavirus spread as the nation eases restrictions.

More than 1.5 million people in the United States have tested positive for coronavirus and over 93,000 have died, according to Johns Hopkins University.
Virginia, Texas, Georgia, and Vermont have said they’ve been adding two numbers to their totals: viral test results and antibody test results.
Viral tests are taken by nose swab or saliva sample, and look for direct evidence someone currently has Covid-19. By contrast, antibody tests use blood samples to look for biological signals that a person has been exposed to the virus in the past.