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2018-06-15 [ PDF ]
Avian keratin disorder of Alaska black-capped chickadees is associated with Poecivirus infection
Zylberberg M, Van Hemert C, Handel CM, DeRisi JL

Virology Journal, 2018

Abstract: Avian keratin disorder (AKD) is an epizootic of debilitating beak deformities, first documented in black-capped chickadees (Poecile atricapillus) in Alaska during the late 1990s. Similar deformities have now been recorded in dozens of species of birds across multiple continents. Despite this, the etiology of AKD has remained elusive, making it difficult to assess the impacts of this disease on wild populations. We previously identified an association between infection with a novel picornavirus, Poecivirus, and AKD in a small cohort of black-capped chickadees.