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Quantitative risk assessment of human salmonellosis in the smallholder pig value chains in urban of Vietnam

Author

Listed:
  • Sinh Dang-Xuan

    (Center for Public Health and Ecosystem Research, Hanoi University of Public Health)

  • Hung Nguyen-Viet

    (International Livestock Research Institute)

  • Fred Unger

    (International Livestock Research Institute)

  • Phuc Pham-Duc

    (Center for Public Health and Ecosystem Research, Hanoi University of Public Health)

  • Delia Grace

    (International Livestock Research Institute)

  • Ngan Tran-Thi

    (Center for Public Health and Ecosystem Research, Hanoi University of Public Health)

  • Max Barot

    (International Livestock Research Institute)

  • Ngoc Pham-Thi

    (National Institute of Veterinary Research)

  • Kohei Makita

    (International Livestock Research Institute
    Rakuno Gakuen University)

Abstract

Objectives To quantify salmonellosis risk in humans through consumption of boiled pork in urban Hung Yen Province, Vietnam, using a quantitative microbial risk assessment. Methods We collected 302 samples along the pork value chain in Hung Yen between April 2014 and February 2015. We developed a model in @Risk, based on microbiological, market, and household surveys on cooking, cross-contamination and consumption, and conducted sensitivity analysis. Results Salmonella prevalence of pen floor swabs, slaughterhouse carcasses and cut pork were 33.3, 41.7 and 44.4%, respectively. The annual incidence rate of salmonellosis in humans was estimated to be 17.7% (90% CI 0.89–45.96). Parameters with the greatest influence risk were household pork handling practice followed by prevalence in pork sold in the central market. Wide confidence interval in the incidence estimate was mainly due to the variability in the degree of reduction in bacteria concentration by cooking, and pork consumption pattern. Conclusions The risk of salmonellosis in humans due to boiled pork consumption appears to be high. Control measures may include improving the safety of retailed pork and improving household hygiene.

Suggested Citation

  • Sinh Dang-Xuan & Hung Nguyen-Viet & Fred Unger & Phuc Pham-Duc & Delia Grace & Ngan Tran-Thi & Max Barot & Ngoc Pham-Thi & Kohei Makita, 2017. "Quantitative risk assessment of human salmonellosis in the smallholder pig value chains in urban of Vietnam," International Journal of Public Health, Springer;Swiss School of Public Health (SSPH+), vol. 62(1), pages 93-102, February.
    • Handle: RePEc:spr:ijphth:v:62:y:2017:i:1:d:10.1007_s00038-016-0921-x
    DOI: 10.1007/s00038-016-0921-x
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    Cited by:

    1. Sinh Dang-Xuan & Hung Nguyen-Viet & Phuc Pham-Duc & Delia Grace & Fred Unger & Nam Nguyen-Hai & Thanh Nguyen-Tien & Kohei Makita, 2018. "Simulating Cross-Contamination of Cooked Pork with Salmonella enterica from Raw Pork through Home Kitchen Preparation in Vietnam," IJERPH, MDPI, vol. 15(10), pages 1-15, October.

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