PMID: 2093618Jan 1, 1990Paper

Prevalence of borreliae in Ixodes ricinus ticks from southern Moravia, Czechoslovakia

Folia Parasitologica
Z HubálekS V Shcherbakov

Abstract

A total of 378 adult Ixodes ricinus ticks were collected by flagging vegetation in four localities of two districts (Breclav, Znojmo) in south Moravia and examined microscopically. Borreliae were identified in Giemsa-stained midgut smears from 32 (i.e. 8.5%) ticks (9.4% females, 7.2% males); the infection rate varied between 0.0 and 11.4% in the four localities examined. Among female ticks, significantly more were found to be infected in autumn (19.7%) than in spring (5.8%). Dark-field (DF) and Giemsa-stained smears (GS) examinations were compared for their sensitivity in detecting borreliae in 128 field-collected ticks; GS method showed a little higher sensitivity (11.7% ticks were positive) than DF procedure (9.4% ticks positive). Two strains of Borrelia burgdorferi were isolated from a total of 150 adult I. ricinus ticks cultured in BSK medium.

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