Everything You Need to Know about Avian Influenza: Bird Flu

Everything You Need to Know about Avian Influenza: Bird Flu ... Virus Update: Information for Travelers to Affected Areas." What is avian influenza (bird flu)? Bird flu is an infection caused by avian (bird) influenza (flu) viruses. These flu viruses occur naturally among birds. Wild birds worldwide carry the viruses in their intestines, but ...

  Area, About, Know, Influenza, Bird, Avian, Affected, Avian influenza, Affected areas, Know about avian influenza, Bird flu