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United States Department of Agriculture
Animal and Plant Health Inspection Service

Avian Health

Last Modified: Nov 13, 2018
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Avian Influenza

Avian Influenza

Avian influenza (AI) is caused by an influenza type A virus which can infect poultry (such as chickens, turkeys, pheasants, quail, domestic ducks, geese, and guinea fowl) and wild birds (especially waterfowl).
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Virulent Newcastle Disease

Virulent Newcastle Disease

Virulent Newcastle disease, formerly known as exotic Newcastle disease, is a contagious and fatal viral disease affecting the respiratory, nervous and digestive systems of birds and poultry. The disease is so virulent that many birds and poultry die without showing any clinical signs.
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Defend the Flock

Defend the Flock

Join the effort to defend our nation’s flocks. Defend the Flock provides the tools and resources you need to make sure that you are doing everything possible to keep your birds healthy and reduce the risk of spreading infectious diseases.
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Biosecurity

Biosecurity

Biosecurity refers to everything that’s done to keep diseases and the pathogens that carry them – viruses, bacteria, funguses, parasites and other microorganisms – away from birds, property, and people.  Biosecurity is a team effort.
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