| Peritonitis associated with Streptococcus equi subsp. zooepidemicus in a thoroughbred horse |
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Jung-Joon Cho1, Sang-Chul Kang1, Hyoung-Seok Yang1, Jae-Hyuk Yang2, Won-Geun Son1, Jong-Hee Bae1, Jae-Hoon Kim1 |
1Department of Veterinary Medicine, Cheju National University
2Jeju Stud Farm & Training Center, Korea Racing Association |
| 더러브렛 말의 Streptococcus equi subsp. zooepidemicus 감염에 의한 복막염 |
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조정준1, 강상철1, 양형석1, 양재혁2, 손원근1, 배종희1, 김재훈1 |
1제주대학교 수의학과
2한국마사회 제주경주마목장 |
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| Abstract |
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Fibrinopurulent peritonitis and abdominal abscesses associated with Streptococcus (S.) equi subsp. zooepidemicus is reported in a 1-year-old female thoroughbred horse. The horse died after showing 5-day history of the cold, severe abdominal distention, abdominal breathing, hyperthermia, anorexia, and loss of intestinal sound. At necropsy, several liters of turbid yellowish green fluid were seen in the abdominal cavity. Yellowish creamy and fibrinous or bloody materials were presented on the serosa of various abdominal organs that were intensively adhered with each other. Spleen and mesenteric lymph node were remarkably enlarged. Affected lobes of the lung showed severe congestion, hemorrhage and doughy consistency. Histologically, the lung showed hemorrhagic pneumonia with diffuse congestion and edema. Severe diffuse fibrinopurulent peritonitis with Gram-positive bacterial cocci and adjacent fibrosis were showed in the serosa of various abdominal organs such as liver, spleen, stomach, and intestine. And multifocal abscess pouches were presented in the granulation tissue of abdominal viscera. S. equi subsp. zooepidemicus was isolated from the peritoneal swab, abdominal organs, and lung. Hematogenous dissemination of bacteria from hemorrhagic pneumonia is proposed as the route of infection in this case. |
| Key Words:
abscess pouch, hemorrhagic pneumonia, peritonitis, Streptococcus (S.) equi subsp. zooepidemicus, thoroughbred horse |
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