Inclusion body hepatitis caused by Aviadenovirus in a tropical screech owl (Megascops choliba).

The Journal of Veterinary Medical Science
Tetsuya KomatsuTomoyuki Shibahara

Abstract

In 2016, tropical screech owl (Megascops choliba) (Tso) chicks were suddenly found dead in a Japanese breeding facility. We autopsied a 9-day-old Tso and discovered white spots scattered on the liver surface. Multifocal necrosis was diffused, and macrophages had infiltrated the necrotic hepatic lesions. Hepatocytes contained numerous intranuclear inclusion bodies. Immunohistochemical staining detected Adenovirus antigen only in the liver. Next, PCR and sequencing (LC536616) identified Tso Adenovirus (TsoAd). Basic Local Alignment Search Tool (BLAST) and phylogenic analyzes suggested TsoAd is an owl Aviadenovirus. Our study contributes to an improved understanding of infectious disease among captive raptors.

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Citations

May 25, 2021·The Journal of Veterinary Medical Science·Tetsuya KomatsuTomoyuki Shibahara

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Datasets Mentioned

BETA
MK572855
APP94056
LC536616

Methods Mentioned

BETA
Transmission electron microscopy
PCR
Y09598

Software Mentioned

Clustal W
BLAST
Basic Local Alignment Search Tool ( BLAST )
MEGA

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