Facts about avian influenza, or bird flu, and one strain of it, avian influenza A, also known as H5N1. Covers the origin, transmission to humans, risks, symptoms, and treatment. (Updated: June 2, 2012)

Additional Tags

bird flu, avian influenza, avian influenza a, encyclopedia of earth, h5n1

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Classroom Considerations

• Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)