[the basic epidemiological traits of lyme disease in the northwestern ussr].dissemination, season variability, ways of infection, as well as main carriers of lyme's disease and tick-borne encephalitis, reasons for the population contact with natural foci and ticks, age and socially professional status were shown to be extremely similar in patients with borreliosis and encephalitis in leningrad province. this fact indicates principal similarity of basic epidemiological properties in two etiologically different infections. a much higher morbidity level is characteristic o ...19911837580
[the experience of a serological examination of the rural population in a territory endemic for lyme borreliosis].serological surveys have been performed in two communities (kirovsk district, leningrad province) endemic for lyme's borreliosis. 736 individuals (51% of the population) have been examined. standard capillary blood samples (drops from the finger on a filter paper) have been investigated by indirect immunofluorescence. blood sera of residents from nonendemic territories and patients with various rheumatic diseases served as a control. serum dilution 1:80 was considered as a reliable screening tit ...19902145501
[the identification of borrelia isolated in the soviet union and czechoslovakia from ixodes ricinus (l.) ticks].seven strains of the causative agent of lyme borreliosis have been isolated from ticks of the species ixodes ricinus (l.) obtained at the territories of leningrad province, lithuania and czechoslovakia. the strains have been studied in reactions with 5 types of monoclonal antibodies. all isolated strains belong to serotype ii according to barbour's system and are typical for european strains.19902145716
the prevalence of borrelia burgdorferi sensu lato in ixodes persulcatus and i. ricinus ticks in the zone of their sympatry.a total of 7210 unfed adult ixodes persulcatus schulze, 1930 and i. ricinus (l., 1758) ticks were collected from the vegetation by flagging in 35 study sites located in the zone of their sympatry (mainly in leningrad region, russia). borrelia infection in ticks was estimated by the dark-field microscopic analysis of gut contents in standard vital preparations at a magnification of x600. no correlation was revealed between the series of parameters characterising the abundance of each tick species ...200111266136
[the localization of borrelia in the body of the ixodes persulcatus tick at different developmental stages].borrelia burgdorferi s. lato have been recovered by means of an observations in a dark screen, phase and anoptrail contrasts in 87.47% imago and 100% nymphs and larvae of the ixodes persulcatus ticks collected in the leningrad, novgorod and pskov regions. four morphological types of borreliae have been recognized, which were present in all stages of ticks examined. the location of the agent in ticks was examined in the material coloured after levaditi. in the hungry stages and the most abundance ...19979304104
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