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    ABSTRACT: Despite reports of Clostridium tetani being isolated from soil in Kanazawa, Okinawa, and Tokyo, Japan, little has been studied about C. tetani distribution in other regions. We studied C. tetani in topsoil samples collected from private gardens, public road shoulders, a university campus, mountains, and fields in Sagamihara. C. tetani occurred in 8 of 35 soil samples (22.9%) and tetanus toxin in 7 of the 8 C. tetani-positive samples (87.5%). Contamination was clearly higher in soils from mountains near Tsukui-gun (Kanagawa Prefecture), Minamitsuru-gun, and Uenohara and Koshu cities (Yamanashi Prefecture) than in other regions. These findings suggest that tetanus toxin-producing strains of C. tetani tend to inhabit the topsoil of western Sagaminaha region, as a geographical feature.
    Kansenshogaku zasshi. The Journal of the Japanese Association for Infectious Diseases 12/2006; 80(6):690-3. DOI:10.11150/kansenshogakuzasshi1970.80.690