False positive coronavirus test results prompt rescreening at nursing homes

Dozens of nursing home patients had to be retested for the coronavirus after officials discovered problems with their original tests, the 11 News I-Team has learned. Joe DeMattos, president of the Health Facilities Association of Maryland, called the situation potentially dangerous. According to DeMattos, the tests in question were from the lab at the University of Maryland School of Medicine, the lab that Gov. Larry Hogan gave money and test kits to in the spring to ramp up its testing capacity. The issue is false positive results.