The CDC are urging people to stop ignoring face covering and social distancing rules when they hit the gym after two new studies confirmed they are strong spreader locations. … In Hawaii, 21 people contracted the virus in July from a cycling fitness instructor who had the disease and taught classes for three days. In the Chicago location, 55 out of 81 people who attended high-intensity fitness classes during the last week of August contracted COVID-19, the studies said. The common factor in both outbreaks was the lack of mask use, according to the CDC report.