Avian Polyomavirus Primer

Signs of avian polyomavirus type 1 in the budgerigar parakeet can be quite variable. Feather dystrophy or abnormal feather growth can lead to deformed flight feathers. Affected birds are unable to fly and are called “runners” or “creepers”. “French molt” is a term sometimes used for this slow, debilitating disease in parakeets characterized by progressive development of abnormal feathers. Bleeding is another hallmark of clinical avian polyomavirus infection . . .


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