College says around 200 students report stomach ailment

COLLEGEVILLE, Pa. (AP) — Officials say around 200 students at a Pennsylvania college have now reported symptoms of a stomach illness, but the source of the ailment remains a mystery.

Ursinus College said Sunday that classes will resume on a regular schedule Monday after being canceled Thursday and Friday. Events during the weekend also were canceled.

Officials said most reported that symptoms abated within 12 to 24 hours. Twenty-two students were treated at hospitals last week, but none was admitted.

The school's dining hall was closed after students began complaining of vomiting, diarrhea and stomach pain Tuesday night, but it reopened after an inspection.

Montgomery County health investigators are trying to determine whether the ailment is foodborne or transmitted from person to person.