An extensive prevalence of Borrelia burgdorferi, the etiologic agent of Lyme borreliosis, in Nagano Prefecture, Japan

Kimito Uchikawa, Koichi MURAMATSU, Kenji Miyamoto, Minoru Nakao

Medical Entomology and Zoology · 1991 · 15 citations · 0 references

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Abstract

To seize the prevalence of B. burgdorferi in Nagano Prefecture, we examined I. persulcatus and I. ovatus ticks for spirochetal infection in 1990. The ticks swept at 20 sites were tested by culturing their midgut tissues or by an indirect immunofluorescence assay using the monoclonal antibody, H5332. The spirochete was detected in the ticks from 18 sites. The infection rates for the adult ticks of I. persulcatus and I. ovatus were 21.3% (68/319) and 25.1% (76/303), respectively. Such the high prevalence of the spirochete in the tick vectors was comparable to that in the Western Europe.