ThePoultrySite Quick Disease Guide
Turkey Viral Hepatitis
A Pocket Guide to
By Paul McMullin
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An infection of turkeys caused by an unidentified virus. Morbidity varies, mortality is 1-25%. Transmission may be by direct or indirect contact and possibly vertical. Birds remain carriers for up to 16 days.
- Signs are usually subclinical.
- Depression and sporadic deaths in birds in good condition.
- Grey foci (c. 1 mm) coalescing.
- Focal haemorrhage.
- Bile staining.
- Grey to pink foci in the pancreas.
- Microscopically - no inclusion bodies.
Isolation in CE, lesions pathognomonic. Differentiate from histomonosis, bacterial and fungal infections.
None; with good management many birds recover.
Good sanitation and management.