http://www.cdc.gov/flu/avian/gen-info/avian-flu-humans.htm
Centers for Disease Control and Prevention, U.S. Department of Health and Human Services
Although avian influenza A viruses do not usually infect humans, several instances of human infections and outbreaks of avian influenza have been reported since 1997. This fact sheet discusses instances of avian influenza infections in humans, symptoms of avian influenza in humans, and antiviral agents for influenza.