https://www.nytimes.com/2020/08/23/sports/ncaafootball/college-football-...

Daniels, the director of sports cardiology at Ohio State, had also been busy, working to publish a three-month study whose preliminary findings were presented to Pac-12 and Big Ten leaders before they shut down football earlier this month. Daniels said that cardiac M.R.I.s, an expensive and sparingly used tool, revealed an alarmingly high rate of myocarditis — heart inflammation that can lead to cardiac arrest with exertion — among college athletes who had recovered from the coronavirus.

The survey found myocarditis in close to 15 percent of athletes who had the virus, almost all of whom experienced mild or no symptoms