A case in which clinical and pathological changes resembled infectious serositis of duck occured in suburb of Zhengzhou, and one strain of bacteria was isolated.

• 摘要郑州市郊某鸭场发生一起临床症状、剖检病变疑似鸭传染性浆膜炎鸭疫里氏杆菌病例，从中分离到1株细菌。