Other Animal Disease — United States
[Authors: Maxine Zylberberg, Caroline Van Hemert, John P. Dumbacher, Colleen M. Handel, Tarik Tihan, Joseph L. DeRisi]
Abstract
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Avian keratin disorder (AKD), characterized by debilitating overgrowth of the avian beak, was 1st documented in black-capped chickadees (_Poecile atricapillus_) in Alaska. Subsequently, similar deformities have appeared in numerous species across continents. Despite the widespread distribution of this emerging pathology, the cause of AKD remains elusive.
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