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nr 1
93-99
EN
Attempts were made to identify the causative orgamsm of Lyme disease in Szczecin from tick Ixodes ricinus as a vector. Ticks were collected in 1997 year in forest areas of Szczecin, from localites associated with numerous attendance of people. The method used in this study was the polymerase chain reaction (PCR) on the flagellin structural gene fla of Borrelia burgdorferi sensu stricto. The flagellin PCR primer set reaction was conservative for B. burgdorferi sensu stricto, B. afzelii and B. garinii. The overall prevalence of B. burgdorferi sensu lato, in tick population studied was 8.8%. The female, nymphs and larves of Ixodes ricinus were infected almost just the some - about 10%, when the male 2.5% only.
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tom 62
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nr 3
EN
Toxoplasmosis is globally distributed, water- and food borne zoonosis caused by the single protozoan Toxoplasma gondii and probably one-third of the world’s human population is infected with this pathogen. Domestic and wild felids are definitive hosts of this pathogen and intermediate hosts for great variety of other homoeothermic animals. Human as other of the intermediate hosts may become infected in the main route of infection; it is the ingestion of parasite oocysts in contaminated water or soil and undercooked meat. However, the mechanism which this parasite uses to so large spread is not fully understood, because oral transmission does not explain the common event of this parasite in a variety of hosts, such as herbivorous animals or rodents and birds, as well as routes of spread to domestic hosts. Such a wide circle of hosts suggests a possibility of other paths of transmission and a role of ticks, the bloodseeking arthropods was considered in the transmission of T. gondii.
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tom 43
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nr 2
171-178
EN
Trophozoites of Balantidium coli were isolated from the pig's caecum and cultivated in vitro. Pigs were divided into two groups: one with the acute balantidiosis and the second - with the asymptomatic balantidiosis. In the first case the biotic potential of protozoans turned out to be higher (the most intensive divisions occurred 24 hours after the second passage). Protozoans isolated from pigs with the asymptomatic balantidiosis had lower biotic potential (the most intensive divisions occurred 24 hours after the third passage). This fact indicates the differentiation of the investigated populations of B. coli.
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nr 2
227-232
EN
Presently acquired results are the outcome of, as for today, pilot-scale, preliminary study, although they were based on a tick (Ixodes ricinus) population of 533 individuals, collected from the vicinity of Szczecin. The areas sampled have been considered as recreational, which means they are frequented by a large number of people. The ticks were collected in 1996 in two seasons: spring-summer and summer-autumn. The overall prevalence of the spirochetes B. burgdorferi sensu lato, in the tick population studied, was 12.6%, while that of the spring-summer season reached 25.5%, decreasing in the summer-autumn season down to 2.3%.
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Content available X Miedzynarodowy Kongres Protozoologiczny w Sydney
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nr 1
98-103
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nr 1
94-97
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