Officials cite five new cases of New York City virus in H1N1 schools . five school administrator critically ill with the virus , officials say . Administrator had a pre-existing medical condition , mayor indicates . Dr. Isaac Weisfuse , the deputy commissioner of the city 's Department of Hygiene and Mental Health , said although concern is legitimate , there 's no solid evidence that suggests the H1N1 flu -- also known as swine flu -- is more dangerous than the flu in general . One of students have reported flu-like symptoms at the five closed schools .
Officials cite five new cases of New York City virus in H1N1 schools . five school administrator critically ill with the virus , officials say . Administrator had a pre-existing medical condition , mayor indicates . One of students have reported flu-like symptoms at the five closed schools .