The American University in Cairo said on Monday that a dorm building housing foreigners was quarantined for 24 hours after two American students were diagnosed with swine flu.
Rehab Saad from the university's public relations office said that the two cases were discovered Sunday night along with a third suspected case. All three have been hospitalized.
The dorm in the Zamalek area of Cairo houses about 100 students.
It was not known where the students contracted the disease.