Inclusion body hepatitis in Mexico.

Area of Science:

• Veterinary Pathology
• Avian Diseases
• Hepatology

Background:

• Inclusion body hepatitis (IBH) is a significant viral disease affecting poultry worldwide.
• Previous reports have not documented IBH cases in Mexico.

Purpose of the Study:

• To report the first occurrence of inclusion body hepatitis in chickens in Mexico.
• To describe the clinical and pathological characteristics of this disease in the affected region.

Main Methods:

• Clinical examination of affected chickens.
• Gross necropsy and histopathological evaluation of tissue samples.
• Examination of lesions in experimentally inoculated chicken embryos.

Main Results:

• Clinical signs included depression, reduced feed intake, and increased mortality.
• Gross lesions observed were enlarged, pale livers with hemorrhages and characteristic basophilic intranuclear inclusions.
• Histopathology confirmed hepatocellular necrosis and the presence of viral inclusions.

Conclusions:

• This study confirms the presence of inclusion body hepatitis in Mexico.
• The findings provide essential baseline data for understanding and managing IBH in Mexican poultry populations.