Valentina V Nefedova

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The possibility of vertical transmission of Borrelia burgdorferi sensu lato in Ixodes persulcatus Schulze, 1930 ticks was studied in the progeny of 20 females collected from the vegetation in an active focus of ixodid tick-borne borrelioses (ITBB) located in the Perm oblast, Russia, where Borrelia garinii and B. afzelii are circulating. The presence of(More)
From 1994 to 2011, over 7000 individuals of small mammals were captured and examined for ticks in the natural foci of ixodid tick-borne borrelioses (ITBB) in the Middle Urals (Chusovskoy District of Perm Territory). Alongside with the taiga tick (Ixodes persulcatus), which is the main Borrelia vector, approximately 5700 feeding individuals of Ixodes(More)
The nested PCR method with primers flanking a conserved fragment of the Babesia microti ss-rDNA gene was used to examine 834 larvae of Ixodes trianguliceps ticks engorged to a varying degree, taken off 237 hosts of 12 species (rodents and insectivores). The hosts were collected in southern taiga forests in the lowmountain area of the Middle Urals (Chusovoi(More)
Based on analysis of original and literature data, it is concluded that effective transmission of B. microti by the tick I. persulcatus is prevented by the following main permanent eco-parasitological factors: lack of pronounced anthropophily in the tick nymphs; low rates of spontaneous invasion of unfed adults; a short duration of the parasitic phase on(More)
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