One parent of a student studying at NUS wrote to the daily saying that as the university did not temporarily stop such trips, it was exposing students to the risk of infection. The parent told the evening paper she was concerned that as most cases in Singapore were imported ones, these students who return from affected areas could also bring the virus into the country. The first confirmed case of H1N1 is a 22-year-old SMU undergraduate who had gone on a school trip to New York.