Photo of a gloved hand reaching out with a test tube and swab next to a car

Medicine’s Mark Cameron explains Gov. DeWine’s conflicting COVID-19 tests

Coronavirus confusion: Why mistakes are more likely with Ohio Gov. DeWine’s first test Mark Cameron, an associate professor in the School of Medicine, commented on the tales of two tests: Why did Gov. Mike DeWine test positive for his first test for COVID-19, but negative for the second one? The answer, Cameron said, has to do with the reliability of antigen tests.