Surveillance of Parrot Bornavirus in Taiwan Captive Psittaciformes.
Viruses
; 16(5)2024 05 18.
Article
en En
| MEDLINE
| ID: mdl-38793686
ABSTRACT
Parrot bornavirus (PaBV) is an infectious disease linked with proventricular dilatation disease (PDD) with severe digestive and neurological symptoms affecting psittacine birds. Despite its detection in 2008, PaBV prevalence in Taiwan remains unexplored. Taiwan is one of the leading psittacine bird breeders; hence, understanding the distribution of PaBV aids preventive measures in controlling spread, early disease recognition, epidemiology, and transmission dynamics. Here, we aimed to detect the prevalence rate of PaBV and assess its genetic variation in Taiwan. Among 124 psittacine birds tested, fifty-seven were PaBV-positive, a prevalence rate of 45.97%. Most of the PaBV infections were adult psittacine birds, with five birds surviving the infection, resulting in a low survival rate (8.77%). A year of parrot bornavirus surveillance presented a seasonal pattern, with peak PaBV infection rates occurring in the spring season (68%) and the least in the summer season (25%), indicating the occurrence of PaBV infections linked to seasonal factors. Histopathology reveals severe meningoencephalitis in the cerebellum and dilated cardiomyopathy of the heart in psittacine birds who suffered from PDD. Three brain samples underwent X/P gene sequencing, revealing PaBV-2 and PaBV-4 viral genotypes through phylogenetic analyses. This underscores the necessity for ongoing PaBV surveillance and further investigation into its pathophysiology and transmission routes.
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Texto completo:
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Colección:
01-internacional
Banco de datos:
MEDLINE
Asunto principal:
Filogenia
/
Psittaciformes
/
Enfermedades de las Aves
/
Infecciones por Mononegavirales
/
Bornaviridae
Límite:
Animals
País/Región como asunto:
Asia
Idioma:
En
Revista:
Viruses
Año:
2024
Tipo del documento:
Article
País de afiliación:
Taiwán