LOS ANGELES -- Another 70 USC students have fallen ill with a highly contagious gastrointestinal virus, bringing the total number of sick students to 200, university officials said Monday.

Symptoms of the virus include vomiting, diarrhea and stomach-cramping. The symptoms last about one to two days and can be managed with rest and fluids, USC officials said.

Students who are not feeling well should avoid socializing and take precautions to reduce the chance of infecting other students.

To avoid contracting the virus, staff and students were asked to frequently wash their hands, use hand sanitizer gels or wipes, and refrain from sharing work stations, food and beverages.

The restrooms and common areas of residence halls have been thoroughly cleaned, and USC officials were providing sanitation measures to university-owned housing and the Row.

Campus offices and classes are operating as usual.