1 型鸭肝炎病毒,大龄雏鸭
Duck hepatitis A virus type 1 infection in a commercial Pekin duckling. Note extensive petechial and ecchymotic hemorrhages throughout the liver.
Courtesy of Dr. Peter R. Woolcock.
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Duck hepatitis A virus type 1 infection in a commercial Pekin duckling. Note extensive petechial and ecchymotic hemorrhages throughout the liver.
Courtesy of Dr. Peter R. Woolcock.