Mutalib A A, King J M, McDonough P L
Diagnostic Laboratory, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853.
J Vet Diagn Invest. 1993 Apr;5(2):198-201. doi: 10.1177/104063879300500210.
Erysipelas was diagnosed in 2 succeeding caged layer flocks housed in the same building and was characterized clinically by sudden death. At necropsy, lesions comprised generalized congestion, hemorrhages in the skeletal muscles and visceral organs, and swelling of liver, spleen, and kidney with or without large irregular zones of necrosis. Focal to massive hepatic necrosis was seen histologically with minimal or no inflammatory reaction. Erysipelothrix rhusiopathiae was cultured from internal organs of affected birds in both outbreaks. Medication with penicillin in the feed controlled the mortality, but relapse occurred after cessation of medication. Two attendants who handled the dead birds in this building developed a painful localized infection of the fingers that later spread to the regional lymph node. The infection responded when antibiotic therapy for erysipeloid was initiated.
在同一栋鸡舍中连续饲养的两个笼养蛋鸡群中诊断出丹毒，临床特征为突然死亡。尸检时，病变包括全身充血、骨骼肌和内脏器官出血，肝脏、脾脏和肾脏肿大，有或无大片不规则坏死区。组织学检查可见局灶性至大片肝坏死，炎症反应轻微或无炎症反应。在两次疫情中，均从受感染禽类的内脏器官中培养出猪丹毒杆菌。在饲料中添加青霉素进行治疗可控制死亡率，但停药后复发。在这栋鸡舍中处理死鸡的两名饲养员手指出现疼痛性局部感染，随后蔓延至区域淋巴结。开始使用类丹毒抗生素治疗后，感染得到缓解。
