Prepackaged meals were being offered to students at the University of Pittsburgh in Johnstown, where several students have been sickened by what officials fear is norovirus.
The school says students are complaining of gastrointestinal illness symptoms, including fever, chills, nausea, vomiting and diarrhea.
The Pennsylvania Department of Health is assisting school officials in determining what is causing the illnesses.
To keep the virus from spreading, university officials are urging students to limit their exposure to gatherings in confined spaces. The university has cancelled all indoor social events for the weekend, and cafeteria services at all dining facilities on campus have been shut down.
The university also reported that it has closed its Wellness Center and has deployed more custodians to clean campus buildings.
Classes have not been cancelled, however.