Clemson announced on Friday that 28 student-athletes have tested positive for COVID-19 among 315 players and coaches tested since the to return to campus earlier this month. The school says that the athletes are from football, men's basketball, volleyball, men's soccer and women's soccer. However, according to The Athletic, 23 of those 28 positive tests are within the football team.

The school says that most of the cases have been asymptomatic and none of the players have been hospitalized due to the coronavirus. Athletes who have tested positive will be isolated for at least 10 days, and people who have been in close contact with those individuals are being asked to self-quarantine for two weeks. The Athletic reported that voluntary summer workouts will not be shut down due to the positive tests.

Clemson started its return to campus on June 1.

There has been an increase in positive COVID-19 cases across the country over the last two weeks as student-athletes have returned to campus. Texas reported on Thursday that 13 players have tested positive for COVID-19 and Houston shut down its preseason conditioning after six players recorded symptomatic positive tests. 

The COVID-19 pandemic has swept across the world since the beginning of January, killing more than 450,000 people and infecting more than 8.5 million. It has caused the cancelation of college football spring practices, the NCAA men's and women's basketball tournaments and other major sporting events. It also interrupted NBA and NHL seasons, delayed the start of the MLB season and postponed The Masters and Kentucky Derby to the fall.