The goal now is to identify anyone who's had contact with that student.
Notre Dame University and local health officials in Indiana say there's no need to panic. Only one student has come down with swine flu and they know of no other cases..
The university sent out an email to all students on Tuesday warning them about the case. That email prompted a strong reaction.
In the shadow of the famed golden dome, Notre Dame University student health center was packed with patients on Tuesday night.
Student Patrick Kissling has been feeling sick and wonders if it's swine flu.
"I didn't want to get my classmates sick as well," said Patrick Kissling, Notre Dame student.
Kissling said his symptoms include a cough.
Last week, another Notre Dame student came to the same clinic with flu-like symptoms and was tested. The Centers for Disease Control confirmed that it is indeed the first case of swine flu in Indiana.
"We're concerned. We're taking this seriously. But there's no cause for panic. We're not closing down the university," said Dr. Rebecca Moskwinski, MD, medical director of Student Health at Notre Dame.
Health officials won't say if the patient is male or female. They are only saying that the student is a young adult and is now fully recovered from swine flu.
How he or she was infected remains perhaps the most troubling question because the student hadn't traveled to Mexico recently.
Health officials are trying to notify anyone who may have had close contact with the infected student.
"We're not trying to worry an excessive amount or anything. We are investigating the case," said Kelly Golliff, St. Joseph County Health Department.
Without knowing how exactly the student was infected, plenty on campus are sounding worried on Tuesday.
"I guess what makes us so nervous is that finals are coming up. So with studying and being sick, it would be kind of hard," said Anna Delcastillo, Notre Dame student.
The student health center on campus was packed on Monday night. The wait to see a doctor was two hours or longer.
The university is warning students and staff that they should take precautions.