The investigation into the outbreak of a yet unidentified etiology at the Humber College North Campus in Toronto continues into the weekend as health officials put the number affected at around 200.

Humber College According to the latest update from the school on Friday evening, resident students affected have presented with symptoms of cramping, vomiting, nausea, diarrhea and dizziness. One person was hospitalized for their illness and has since been released.

To date, food inspectors have found no significant food safety issues in the residence-dining hall. While the investigation continues, Humber College has stopped all self-service food options (such as salad bars) from all food outlets on campus.

Humber has increased cleaning frequency in the residences and is assisting affected students by delivering water to encourage hydration.

While the etiology has not been identified, associate medical officer of health, Dr. Michael Finkelstein said it may be due to a virus. “While investigations at this point are more consistent with a virus that is being transmitted from person to person, Toronto Public Health will continue to investigate over the weekend,” he said.