Correlation of avian bornavirus-specific antibodies and viral ribonucleic acid shedding with neurological signs and feather-damaging behaviour in psittacine birds

Parrot bornaviruses (PaBV) are the causative agents of proventricular dilatation disease in psittacine birds, but have also been linked to other clinical signs, including behavioural disorders and neurological signs. The aim of this study was to correlate PaBV infection in birds showing feather‐damaging behaviour or neurological signs for which no other cause of disease could be identified. Psittacine birds presented to a private practice were...