Update on 2009 Pandemic Influenza A (H1N1) Virus

The pandemic influenza A (H1N1/2009) virus as a new challenge for health care providers has caused significant morbidity and mortality worldwide. Although many aspects of this virus are similar to other human influenza viruses, there are some disparities. This article reviews different aspects of influenza H1N1/2009 virus with focus on clinical features and management of patients