State health officials are trying to determine if the cases are related to more than 70 Princeton students who have come down with stomach flu-like symptoms in recent weeks.
School doctors and health officials are reviewing the sick students' recent eating histories to search for a possible link between the cases.
But a university spokeswoman said the six students who tested positive for Salmonella had more serious symptoms than those complaining of stomach illness, so the cases may not be related.
