Dr. Mary Young, assistant professor of medicine at Georgetown University Medical Center, discusses Influenza A H1N1 (swine flu), its symptoms, and steps that can be taken to prevent contracting or spreading the virus./nDr. Mary Young is an assistant professor of medicine in the division of infectious diseases at Georgetown University Medical Center. She is also director of the HIV Women's Program and a member of the Center for the Study of Sex Differences in Health, Aging and Disease. She is an expert on infectious diseases, HIV/AIDS, and various treatments for infectious diseases. She is the site principal investigator of the N.I.H. funded Women's Intra-Agency HIV Study (WIHS), which is a longitudinal study of HIV-infected women. She is also one of the Chairpersons of the Georgetown University Hospital Institutional Review Board (IRB), providing advice and direction on IRB protocol submissions and helps reinforce compliance with local IRB requirements.