Four more Penn State student-athletes have tested positive for the coronavirus, Penn State Athletics announced in its weekly testing report Wednesday.

Between December 26 and January 1, the department administered 513 tests, resulting in four positives.

Wednesday’s reported figures bring Athletics’ cumulative positive tests to 209 since testing began over the summer. Penn State has performed 21,538 tests since student-athletes returned to campus.

Positive coronavirus cases within Penn State men’s basketball program forced the team to postpone its January 6 matchup with Ohio State. A release from the Buckeyes confirmed two Nittany Lions positives prompted the postponement.

Each student-athlete who’s tested positive to date has entered a 14-day isolation period before undergoing additional tests and resuming organized activities. When positives are reported, Penn State said it will also implement contact tracing to identify individuals who may have crossed paths with those affected. Identified individuals will also be quarantined, even if they’re asymptomatic.

“The health and safety of our student-athletes, coaches, staff and the broader community are of the utmost importance,” Athletics said in a statement. “We expect our student-athletes to follow University requirements and guidelines for limiting the spread of COVID-19, including wearing masks, practicing social distancing, washing their hands regularly and not gathering in large groups.”

Penn State Athletics reports updated student-athlete coronavirus testing data every Wednesday.