총 2151페이지
1784페이지 본문시작
과 제 명 국내 발생 가축질병에 대한 역학분석 연구
연
Epidemiological investigation on Botulism of cattle in Northern Gyeonggi-do
발표제목
구
between 2011 and 2012
성
과
정우석, 배정경, 전우진, 윤하정, 김연주, 장우석, 황성철, 김지혜, 이용주,
발 표 자
김도순, 주이석, 박소용, 문운경
활
발 표 처 한국수의공중보건학회 추계학술대회
발표시기
2012년 11월
용
집
Abstract :
Botulism(types A to G) is neuroparalytic disease caused by a toxin produced by
anaerobic bacteria Clostridium botulinum. Most incidents of botulism in cattle are
associated with contaminated feeds, carcasses of small animals present in the
environment and broiler litter. The aim of this study is to provide knowledge on the
recent outbreak of Botulism in Pocheon and Yeoncheon, Gyeonggi-do between August
2011 and July 2012 which specifically occurred in cattle farms(24farms, 431cattle).
Common clinical signs include excessive salivation, reduced activity, reduced appetite,
hind leg paralysis and astasia. From the viral and bacterial tests five farms were
confirmed to have the botulinum toxin with another 19 farms as likely suspects. From
the specimens and the surrounding environments they confirmed type B, C, D of
botulinum toxin. Most of the cattle farms confirmed to type B are located
geographically along the main rivers of Yeongpyeong. On the other hand, botulinum
toxin type C was found out from fecal samples of two layer hen farms in that area.
The farms in the area were flooded due to heavy rain from 3rd July to 23rd August
2011(52days : 1,318mm) and from 26th to 29th July 2012(4days : 675mm). The initial
case occurred in summer on the 29th August 2011 that started preventive vaccination
against mosquito borne diseases. Later they confirmed Clostridium botulinum and
started vaccinating against botulinum toxin type B, C and D in February 2012 on
affected farms. The geographical range of vaccination was widened and the outbreak
was stabilized. Most incidents of botulism in cattle are believed to be associated with
the ingestion of preformed toxin(foodborne botulism), due either to the primary growth
of C. botulinum in spoiled feeds(forage botulism) or to the contamination of feed with
toxin-containing
carrion(carrion-associated
botulism).
Most
non-carrion-associated
botulism is due to type B toxin, whereas type C and D toxins are usually associated
with the putrefied carcases of birds or small animals that have contaminated water,
feed or the environment. The study concludes that the outbreak was caused by
Clostridium botulinum due to flooding as confirmed by botulinum type B, C, D in
environmental specimens including fowl droppings.
952
연
Epidemiological investigation on Botulism of cattle in Northern Gyeonggi-do
발표제목
구
between 2011 and 2012
성
과
정우석, 배정경, 전우진, 윤하정, 김연주, 장우석, 황성철, 김지혜, 이용주,
발 표 자
김도순, 주이석, 박소용, 문운경
활
발 표 처 한국수의공중보건학회 추계학술대회
발표시기
2012년 11월
용
집
Abstract :
Botulism(types A to G) is neuroparalytic disease caused by a toxin produced by
anaerobic bacteria Clostridium botulinum. Most incidents of botulism in cattle are
associated with contaminated feeds, carcasses of small animals present in the
environment and broiler litter. The aim of this study is to provide knowledge on the
recent outbreak of Botulism in Pocheon and Yeoncheon, Gyeonggi-do between August
2011 and July 2012 which specifically occurred in cattle farms(24farms, 431cattle).
Common clinical signs include excessive salivation, reduced activity, reduced appetite,
hind leg paralysis and astasia. From the viral and bacterial tests five farms were
confirmed to have the botulinum toxin with another 19 farms as likely suspects. From
the specimens and the surrounding environments they confirmed type B, C, D of
botulinum toxin. Most of the cattle farms confirmed to type B are located
geographically along the main rivers of Yeongpyeong. On the other hand, botulinum
toxin type C was found out from fecal samples of two layer hen farms in that area.
The farms in the area were flooded due to heavy rain from 3rd July to 23rd August
2011(52days : 1,318mm) and from 26th to 29th July 2012(4days : 675mm). The initial
case occurred in summer on the 29th August 2011 that started preventive vaccination
against mosquito borne diseases. Later they confirmed Clostridium botulinum and
started vaccinating against botulinum toxin type B, C and D in February 2012 on
affected farms. The geographical range of vaccination was widened and the outbreak
was stabilized. Most incidents of botulism in cattle are believed to be associated with
the ingestion of preformed toxin(foodborne botulism), due either to the primary growth
of C. botulinum in spoiled feeds(forage botulism) or to the contamination of feed with
toxin-containing
carrion(carrion-associated
botulism).
Most
non-carrion-associated
botulism is due to type B toxin, whereas type C and D toxins are usually associated
with the putrefied carcases of birds or small animals that have contaminated water,
feed or the environment. The study concludes that the outbreak was caused by
Clostridium botulinum due to flooding as confirmed by botulinum type B, C, D in
environmental specimens including fowl droppings.
952
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