An employee of Starbucks Trojan Grounds, a café at USC’s University Park Campus, has tested positive for COVID-19, Chief Health Officer Sarah Van Orman wrote in an email to the USC community Tuesday evening.

“We have recently received information about a confirmed case of COVID-19 from an employee who worked in the Starbucks Trojan Grounds coffeehouse,” the email stated. “This notification is made to the USC community to reinforce awareness of the nature of community spread and the importance of following health and safety practices.”

The individual last worked at the coffeehouse on June 11, 2020—five days prior to the public announcement. Employees who may have been exposed to the virus were instructed to stay home and self-monitor symptoms.

In the meantime, the Trojan Grounds cafe will double down on its already-strict cleaning regimen.

“The Starbucks Trojan Grounds follows strict cleaning guidelines on a daily basis which includes sanitizing surfaces every 30 minutes,” Van Orman wrote. She added that the store will undergo enhanced cleaning before it reopens to the public.

Van Orman also emphasized the importance of vigilance and hygiene to minimize the spread of the virus. She advised that all employees and students wear a face covering on campus property, practice physical distancing, wash their hands, report all illnesses and stay at home if any sickness is suspected.