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Distribution of Salmonella Serovars in Humans, Foods, Farm Animals and Environment, Companion and Wildlife Animals in Singapore

Author

Listed:
  • Kyaw Thu Aung

    (National Centre for Food Science, Singapore Food Agency, Singapore 718837, Singapore
    Nanyang Technological University Food Technology Centre (NAFTEC), Singapore 637551, Singapore
    School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637551, Singapore
    School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore)

  • Wei Ching Khor

    (National Centre for Food Science, Singapore Food Agency, Singapore 718837, Singapore)

  • Sophie Octavia

    (National Public Health Laboratory, National Centre for Infectious Diseases, Singapore 308442, Singapore)

  • Agnes Ye

    (National Centre for Food Science, Singapore Food Agency, Singapore 718837, Singapore)

  • Justina Leo

    (National Centre for Food Science, Singapore Food Agency, Singapore 718837, Singapore)

  • Pei Pei Chan

    (Ministry of Health, Singapore 169854, Singapore)

  • Georgina Lim

    (Ministry of Health, Singapore 169854, Singapore)

  • Wai Kwan Wong

    (Centre for Animal & Veterinary Sciences, Animal and Veterinary Services, National Parks Board, Singapore 718827, Singapore)

  • Brian Zi Yan Tan

    (Centre for Animal & Veterinary Sciences, Animal and Veterinary Services, National Parks Board, Singapore 718827, Singapore)

  • Joergen Schlundt

    (Nanyang Technological University Food Technology Centre (NAFTEC), Singapore 637551, Singapore
    School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637551, Singapore)

  • Anders Dalsgaard

    (Nanyang Technological University Food Technology Centre (NAFTEC), Singapore 637551, Singapore
    School of Chemical and Biomedical Engineering, Nanyang Technological University, Singapore 637551, Singapore
    Department of Veterinary and Animal Sciences, University of Copenhagen, 1871 Frederiksberg C, Denmark)

  • Lee Ching Ng

    (School of Biological Sciences, Nanyang Technological University, Singapore 637551, Singapore
    Environmental Health Institute, National Environment Agency, Singapore 138667, Singapore)

  • Yueh Nuo Lin

    (National Centre for Infectious Diseases, Singapore 308442, Singapore)

Abstract

We analyzed the epidemiological distribution of Salmonella serovars in humans, foods, animals and the environment as a One-Health step towards identifying risk factors for human salmonellosis. Throughout the 2012–2016 period, Salmonella ser. Enteritidis was consistently the predominating serovar attributing to >20.0% of isolates in humans. Other most common serovars in humans include Salmonella ser. Stanley, Salmonella ser. Weltevreden, Salmonella ser. Typhimurium and Salmonella ser. 4,5,12:b:-(dT+). S. Enteritidis was also the most frequent serovar found among the isolates from chicken/chicken products (28.5%) and eggs/egg products (61.5%) during the same period. In contrast, S. Typhimurium (35.2%) and Salmonella ser. Derby (18.8%) were prevalent in pork/pork products. S . Weltevreden was more frequent in seafood (19.2%) than others (≤3.0%). Most isolates (>80.0%) from farms, companion and wildlife animals belonged to serovars other than S . Enteritidis or S . Typhimurium. Findings demonstrate the significance of a One-Health investigative approach to understand the epidemiology Salmonella for more effective and integrated surveillance systems.

Suggested Citation

  • Kyaw Thu Aung & Wei Ching Khor & Sophie Octavia & Agnes Ye & Justina Leo & Pei Pei Chan & Georgina Lim & Wai Kwan Wong & Brian Zi Yan Tan & Joergen Schlundt & Anders Dalsgaard & Lee Ching Ng & Yueh Nu, 2020. "Distribution of Salmonella Serovars in Humans, Foods, Farm Animals and Environment, Companion and Wildlife Animals in Singapore," IJERPH, MDPI, vol. 17(16), pages 1-13, August.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:16:p:5774-:d:396871
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    References listed on IDEAS

    as
    1. Kyaw Thu Aung & Hong Jun Chen & Man Ling Chau & Grace Yap & Xiao Fang Lim & Mahathir Humaidi & Cliff Chua & Gladys Yeo & Hooi Ming Yap & Jia Quan Oh & Vijitha Manogaran & Hapuarachchige Chanditha Hapu, 2019. "Salmonella in Retail Food and Wild Birds in Singapore—Prevalence, Antimicrobial Resistance, and Sequence Types," IJERPH, MDPI, vol. 16(21), pages 1-12, October.
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    Cited by:

    1. Kyaw Thu Aung & Wei Ching Khor & Kar Hui Ong & Wei Ling Tan & Zhi Ning Wong & Jia Quan Oh & Wai Kwan Wong & Brian Zi Yan Tan & Matthias Maiwald & Nancy Wen Sim Tee & Timothy Barkham & Tse Hsien Koh & , 2022. "Characterisation of Salmonella Enteritidis ST11 and ST1925 Associated with Human Intestinal and Extra-Intestinal Infections in Singapore," IJERPH, MDPI, vol. 19(9), pages 1-14, May.

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