不同來源之豬隻沙氏桿菌流行病學調查：探討台灣居民感染人畜共通沙氏桿菌症風險

Sero-groups and Antimicrobial Resistance in Salmonella Isolates from Pig Herds, Abattoirs and Clinical Cases: Risk of Salmonella Zoonotic Transmission

林正忠(Cheng-Chung Lin) ； 劉哲宏(Che-Hung Liu) ； 張照勤(Chao-Chin Chang) ； 李維誠(Wei-Chen Lee) ； 劉正義(Cheng-I Liu) ； 陳德勲(Ter-Hsin Chen)

《台灣公共衛生雜誌》 27卷3期 (2008/06) Pp. 243-249

https://doi.org/10.6288/TJPH2008-27-03-06

摘要

Objectives: The aim of the study was to determine the grouping and microbial resistance in Salmonella isolates from pig herds, abattoirs and clinical cases. Methods: Direct culture of lesions was collected from clinical cases. Feces was collected from pig herds and abattoirs. Preenrichment (BPW) and selective enrichment (TT, RV) were processed then plated on selective agars. Isolates were grouped by sero-agglutination and 16 antimicrobial discs were selected for agar disc diffusion tests. Results: S. Cholerasuis was the dominant strain isolated from clinical salmonellosis cases. Grouping of the isolates found in pig herds and abattoirs included group B and others, but group C1 was only found in abattoirs. Microbial resistance of the clinical cases was 78.5%, and of the healthy pigs from abattoirs and pig herds, 39.4% and 39.2%, respectively. Conclusions: The isolated Salmonella from ill pigs has substantially different serotypes and drug resistance than from farmed and slaughtered healthy pigs. Therefore, healthy pigs slaughtered in well-processed slaughterhouses can reduce the risk of human Salmonella infection.

關鍵字

沙氏桿菌 ； 豬場 ； 屠宰場 ； 分離 ； 抗生素抗藥性

並列摘要

Objectives: The aim of the study was to determine the grouping and microbial resistance in Salmonella isolates from pig herds, abattoirs and clinical cases. Methods: Direct culture of lesions was collected from clinical cases. Feces was collected from pig herds and abattoirs. Preenrichment (BPW) and selective enrichment (TT, RV) were processed then plated on selective agars. Isolates were grouped by sero-agglutination and 16 antimicrobial discs were selected for agar disc diffusion tests. Results: S. Cholerasuis was the dominant strain isolated from clinical salmonellosis cases. Grouping of the isolates found in pig herds and abattoirs included group B and others, but group C1 was only found in abattoirs. Microbial resistance of the clinical cases was 78.5%, and of the healthy pigs from abattoirs and pig herds, 39.4% and 39.2%, respectively. Conclusions: The isolated Salmonella from ill pigs has substantially different serotypes and drug resistance than from farmed and slaughtered healthy pigs. Therefore, healthy pigs slaughtered in well-processed slaughterhouses can reduce the risk of human Salmonella infection.

並列關鍵字

Salmonella ； pig herd ； slaughter house ； isolation ； antimicrobial resistance

參考文獻

Chang CF,Chang LC,Chang YF,Chen M,Chiang TS(2002).Antimicrobial susceptibility of Actinobacillus pleuropneumoniae, Escherichia coli and Salmonella Choleraesuis recovered from Taiwanese swine.J Vet Diagn Invest.14,153-157.

Helmuth R,Wray C,Wray A (eds.)(2000).Salmonella in Domestic Animals.New York:CABI.

Huang TM,Chang YF,Chang CF(2004).Antimicrobial susceptibility and resistance gene determinants in clinical Escherichia coli and Salmonella enterica serovar Choleraesuis swine isolates.Taiwan Vet J.30,116-124.

McDonald LC,Chen MT,Lauderdale TL,Ho M(2001).The use of antibiotics critical to human medicine in foodproducing animals in Taiwan.J Microbiol Immunol Infect.34,97-102.

Humphrey T,Wray C,Wray A (eds.)(2000).Salmonella in Domestic Animals.New York:CABI.