Avian influenza is a strain of influenza virus that primarily infects birds. It is often called the bird flu.
In Asia and Africa, there have been cases of avian influenza that have the ability to infect humans. The most significant of these avian influenza strains is called H5N1. This strain can cause serious illness and death.
Virus Attacking Cell
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Last reviewedMay 2013by Michael Woods, MD
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