Characteristics of outbreak for the classical swine fever (CSF) at Incheon metropolitan area in 2002

인천지역에서 발생한 돼지콜레라의 역학적 특성

  • 권효정 (인천광역시보건환경연구원) ;
  • 변재원 (인천광역시보건환경연구원) ;
  • 이정구 (인천광역시보건환경연구원) ;
  • 김경호 (인천광역시보건환경연구원) ;
  • 박은정 (인천광역시보건환경연구원) ;
  • 이성모 (인천광역시보건환경연구원) ;
  • 황현순 (인천광역시보건환경연구원)
  • Published : 2003.03.01

Abstract

The aim of this survey was to investigate the characteristics of outbreak farm determined as the classical swine fever(CSF) at Gangwha-gun and Seo-gu, Incheon metropolitan area from October 7 to November 25 in 2002. Sixty pigs in six different farms were confirmed to the CSF and a total of 9,106 pigs containing 3,194 related epidemiologically was slaughtered to stop spreading of the disease. Clinical signs of pigs diagnosed with the CSF were high fever, anorexia, depression, paralysis of hindlimbs, cyanosis, etc and gross lesions were typically represented with hemorrhage of submandibular and superficial lymph node, infarction of spleen, and petechial (ecchymotic) hemorrhage of kidney and skin. But some outbreak farms had not shown remarkable symptoms, so they were confused with other bacterial diseases. White blood cell (WBC) counts, the classical swine fever virus(CSFV) antigen and antibody enzyme linked immunosorbent assay(ELISA) and reverse transcriptase polymerase chain reaction (RT-PCR) results about six farms indicated that total 60 pigs were infected with the CSFV. Although the origin and infection route of the CSFV were not clear, but the transmissions between farms were mainly through indirect contact such as the movement of farm personal and vehicles from outbreak farm.

Keywords

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