ARLINGTON, TEXAS – DECEMBER 29: A Clemson Tigers player holds up his helmet before the game against the Notre Dame Fighting Irish during the College Football Playoff Semifinal Goodyear Cotton Bowl Classic at AT&T Stadium on December 29, 2018 in Arlington, Texas. (Photo by Tom Pennington/Getty Images)

CLEMSON, S.C. (AP) — Clemson said 23 football players have tested positive for the coronavirus since the athletes returned to campus this month.

The school in all there have been 28 positive tests for COVID-19, including two football staffers and three athletes from other sports.

None of those contracting the virus have been hospitalized.

Those testing positive are isolated for at least 10 days.

The uptick at Clemson is similar to one in the state of South Carolina, which reported a single-day high of 1,081 cases on Friday.