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  • Title: Infection rates of Theileria sergenti in Haemaphysalis longicornis ticks collected from the field in Japan.
    Author: Kamio T, Ito Y, Fujisaki K, Minami T.
    Journal: Nihon Juigaku Zasshi; 1990 Feb; 52(1):43-8. PubMed ID: 2107351.
    Abstract:
    For a period of one year Haemaphysalis longicornis ticks were collected in a pasture from vegetation by dragging flannel cloth and from soil samples at monthly intervals. Nymphal ticks were assessed for Theileria infection. Salivary glands were stained with methylgreen-pyronin and examined for parasite masses. Nymphal H. longicornis infected with Theileria sergenti were found in all samples during 12 months including the winter. After shortening the prefed period on rabbits to 24 hours, the parasite masses could be detected in the salivary glands of nymphs collected in the grazing season, from May to October, while no parasite masses were detected in other season. It was suggested that the environmental factors in the grazing season might influence on the maturation of parasites in the salivary glands of ticks.
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