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A case of meningitis caused by Streptococcus equi subsp. zooepidemicus infection in a foal in Jeju

제주산 망아지의 Streptococcus equi subsp. zooepidemicus 감염에 의한 뇌막염 증례

  • Mun, Seong-Hwan (Jeju Self-Governing Provincial Veterinary Research Institute) ;
  • Yang, Hyoung-Seok (Jeju Self-Governing Provincial Veterinary Research Institute) ;
  • Jung, Soo-Kyo (Jeju Self-Governing Provincial Veterinary Research Institute) ;
  • Kim, Jae-Hoon (College of Veterinary Medicine and Veterinary Medical Research Institute, Jeju National University)
  • 문성환 (제주특별자치도 동물위생시험소) ;
  • 양형석 (제주특별자치도 동물위생시험소) ;
  • 정수교 (제주특별자치도 동물위생시험소) ;
  • 김재훈 (제주대학교 수의과대학, 수의과학연구소)
  • Received : 2014.02.07
  • Accepted : 2014.03.10
  • Published : 2014.03.30

Abstract

In November 2012, a 4-month-old foal with anorexia, neurologic signs with ataxia and death was submitted for necropsy to the diagnostic laboratory of Jeju Self-Governing Provincial Veterinary Research Institute. Grossly, yellowish-white fibrinous materials were seen on the ventral cerebrum, cerebellum, medulla oblongata and cervical spinal cord of the foal. Histologically, severe fibrino-purulent meningitis characterized by the infiltration of neutrophils and fibrionous exudates with bacterial colonies were presented in cerebrum, cerebellum, brain stem and cervical spinal cord. In the bacterial isolation using meningeal exudate, the small white colonies on blood agar plate with ${\beta}$-hemolysis were observed. Isolated bacteria were Gram-positive cocci and confirmed as Streptococcus (S.) equi subsp. zooepidemicus by VITEK 2 system. Based on the histopathological features and the bacterial test, this case was diagnosed as meningitis associated with S. equi subsp. zooepidemicus infection in a foal. In our best knowledge, this is the first report for fibrino-purulent meningitis caused by S. equi subsp. zooepidemicus infection in Jeju.

Keywords

References

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