Journal of Veterinary Clinics (한국임상수의학회지)

The Korean Society of Veterinary Clinics (한국임상수의학회)
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Outbreaks of Strangles due to Capnophilic Streptococcus equi subsp equi in South Korea

호이산화탄소성 Streptococcus equi subspecies equi에 의한 선역의 발생

  • Moon, Ja-Ho (Equine Hospital, Korea Racing Authority) ;
  • Kim, Jeong-Hee (College of Veterinary Medicine and Veterinary Research Institute, Jeju National University) ;
  • Takai, Shinji (Department of Animal Hygiene, School of Veterinary Medicine, Kitasato University) ;
  • Son, Won-Geun (College of Veterinary Medicine and Veterinary Research Institute, Jeju National University)
  • 문자호 (한국마사회 동물병원) ;
  • 김정희 (제주대학교 수의과대학 수의과학연구소) ;
  • ;
  • Accepted : 2015.01.28
  • Published : 2015.02.28
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Abstract

We reported an outbreak of clinical strangles in thoroughbred horses due to capnophilic Streptococcus equi subsp equi in South Korea. On three different farms, we isolated 17 S equi subsp equi isolates from 29 horses with or without abscesses in their lymph nodes. Of the 17 isolates, two isolates from clinical cases grew well in aerobic conditions, whereas 7/7 isolates from clinical cases and 8/22 isolates from the nasal discharges of horses did not. The latter 15 isolates were capnophilic, oxygen-sensitive, and $CO_2$-requiring S equi subsp equi, which could not grow in aerobic conditions, but which grew well in a $CO_2$ incubator with 5% $CO_2$, in anaerobic conditions using a GasPak, and with reduced oxygen tension in a candle jar. This study is the first report of a strangles outbreak caused by capnophilic S equi subsp equi in South Korea.

이 연구는 더러브렛 말에서 호이산화탄소성 Streptococcus equi subsp equi 에 기인한 선역의 발생에 관한 보고이다. 3개의 다른 농장에서 선역의 전형적인 증상인 림프절 화농이 있거나 없는 29두의 말에서 17 균주의 S equi subsp equi를 분리하였다. 이들 중 임상증상이 있는 1두에서 분리한2균주는 호기배양에서 분리되었으나, 임상증상이 있는 6두에서 분리한 7균주와 임상증상이 없는 22두에서 분리한 8균주는 호기조건에서 배양되지 않았다. 이 15 분리균주는 일반 호기배양기에서는 증식하지 않았으며, 5% $CO_2$배양기, 산소분압을 낮추는 candle jar 및 GasPak을 이용한 혐기배양에서 증식하는 호이산화탄소성, 산소민감성 또는 이산화탄소 요구성 S. equi subsp. equi로 판명되었다. 이 연구는 호이산화탄소성 S. equi subsp. equi 에 의한 선역발생에 관한 최초의 보고이다.

Keywords

References

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