Serovar-Distribution and Antimicrobial Resistance of <I>Salmonella enterica</I> Isolates from Farm Animals, Wild Animals and their Environment in Okinawa Prefecturebetween 1992 and 2005

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  • 1992年から2005年に沖縄県の動物および環境から分離された<I>Salmonella</I>の血清型と薬剤耐性
  • 1992年から2005年に沖縄県の動物および環境から分離されたSalmonellaの血清型と薬剤耐性
  • 1992ネン カラ 2005ネン ニ オキナワケン ノ ドウブツ オヨビ カンキョウ カラ ブンリ サレタ Salmonella ノ ケッセイガタ ト ヤクザイ タイセイ
  • Serovar-Distribution and Antimicrobial Resistance of Salmonella enterica Isolates from Farm Animals, Wild Animals and their Environment in Okinawa Prefecturebetween 1992 and 2005

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Abstract

Between 1992 and 2005, a total of 549 isolates of Salmonella enterica were obtained from farm animals, wild animals and their environment on 56 farms, including 402 isolates from poultry and environmental swabs, 43 dairy cattle, 28 swine, 21 broilers, five beef cattle, four silky fowls, one pony, one goat, 41 wild animals, and three feed samples, in Okinawa prefecture (Japan). The isolates were classified into 61 serovars. The five most predominant servovars were Salmonella Bareilly 9.5%, Weltevreden 8.4%, Enteritidis 7.7%, Newport 7.5%, and Typhimurium 7.3%. The resistance rates of the isolates were oxytetracycline 18.0%, streptomycin 17.3%, ampicillin 6.4%, kanamycin 5.1%, chloramphenicol 4.4%, cefuroxime 0.7%, and nalidixic acid 0.2%, respectively. Twelve isolates showed resistance to five drugs (ABPC-SM-KM-OTC-CP) and 124 (22.6%) were resistant to one or more of the 11 antimicrobial agents tested. Four isolates of S. Newport were resistant to five agents (ABPC, SM, CXM, OTC and CP) and the blacMY gene was detected in four isolates by PCR. Only one isolate originating from sick dairy cattle in 1992 belongs to definitive phage types (DT) 104.

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