Development of a Tool for Evaluating the Risk of Health Damage by Meat-borne Parasite Infection

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Author(s)

    • Yamasaki Hiroshi
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Oushiki Daihi
    • MRI Research Associates Inc., 1-13-1 Uchikanda, Chiyoda-ku, Tokyo 101-0047, Japan
    • Hasegawa Atsushi
    • Platinum Society Center, Mitsubishi Research Institute Inc., 2-10-3 Nagatacho, Chiyoda-ku, Tokyo 100-8141, Japan
    • Arakawa Kyoko
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Ohashi Takeo
    • Human-Life Research Division, Mitsubishi Research Institute Inc., 2-10-3 Nagatacho, Chiyoda-ku, Tokyo 100-8141, Japan
    • Yagita Kenji
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Morishima Yasuyuki
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Sugiyama Hiromu
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Nagamune Kisaburo
    • Department of Parasitology, National Institute of Infectious Diseases, 1-23-1 Toyama, Shinjuku-ku, Tokyo 162-8640, Japan
    • Kakinuma Michiru
    • Human-Life Research Division, Mitsubishi Research Institute Inc., 2-10-3 Nagatacho, Chiyoda-ku, Tokyo 100-8141, Japan
    • Osada Yuko
    • MRI Research Associates Inc., 1-13-1 Uchikanda, Chiyoda-ku, Tokyo 101-0047, Japan

Abstract

In this study, we developed a semi-quantitative risk mapping tool to assess the risk of damage to human health resulting from infection by meat-borne parasites. The developed method is based on the R-Map methodology, which is widely used in industrial settings to assess hazards in Japan. The risk of damage to health due to parasite infection was determined by two main criteria: the annual number of patients and the extent of damage to health. The former criterion was subdivided into four categories and the latter was evaluated based on severity of illness and period required to obtain a cure (hereafter, period to cure). The four categories for extent of damage to health were calculated by multiplying the scores assigned for severity of illness by the period to cure. Each parasite could then be mapped to this 4 × 4 matrix depending on the annual number of patients and the extent of damage to health. Three risk-level zones were then superimposed on the matrix to determine the priority of implementing risk management measures. In this way, the risk to human health associated with each parasite and the priority associated with implementing control measures could be visualized. <i>Toxoplasma gondii</i> infection in human immunodeficiency virus-infected patients and newborn babies was mapped to the unacceptable risk zone due to the severity of the disease in these patients. Emerging parasites, such as <i>Sarcocystis fayeri</i>, <i>Kudoa septempunctata</i> and <i>Taenia asiatica</i>, were mapped to the zone in which the risk of parasitic infections should be reduced by implementing urgent control measures, since doing so would prevent any further increase in infections. The risk assessment tool developed in this study can be employed to evaluate previous and potential risks of parasite infection and is useful for assessing the efficacy of risk control measures.

Journal

  • Food Safety

    Food Safety 2(4), 151-159, 2014

    Food Safety Commission, Cabinet Office, Government of Japan

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