Influenza is a seasonal viral infection associated with significant morbidity and mortality. In
2009, a novel H1N1 influenza A virus emerged and has been classified as a pandemic. In
contrast to seasonal influenza, severe disease from pandemic H1N1 seems concentrated in
older children and young adults, with almost no cases reported in patients older than 60 yrs.
Although patients with underlying cardiopulmonary disease remain at risk, most
complications have occurred among previously healthy individuals, with obesity and …