共查询到20条相似文献,搜索用时 0 毫秒
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R S Mad'iarova A V Dulina D V Krutilina R G Latypova V M Morogova 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1979,(2):88-90
The possibility of the determination of rabies antibodies by the serological method has been demonstrated, involving the use of culture rabies virus, strain Vnukovo-32, concentrated and purified by high speed centrifugation, for the sensitization of anserine erythrocytes. The neutralization test in mice and the passive hemagglutination test showed a correlation in rabies antibody titers in the sera of animlas immunized with rabies vaccines. The advantages of the passive hemagglutination test consist in the rapidity of obtaining the results, in a simple and economic method of carrying out the test. 相似文献
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B L Munday A Corbould 《The Australian journal of experimental biology and medical science》1979,57(2):141-145
During a four and a half year period a group of cattle was grazed continuously with a group of sheep and observed for Toxoplasma antibodies. Initially, there were 25 cattle and 31 sheep, but these were reduced to 19 and 18, respectively, by the end of the observation. Only transient antibody responses were noted in 2 cattle, whereas persistent titres developed in 12 sheep. Interpreted in the light of available information, these results were taken to indicate that cattle do not readily acquire persistent T. gondii infections. 相似文献
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Kovalenko IS Khaĭtovich AB Kir'iakova LS 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》2006,(6):54-56
The natural foci of the Congo-Crimean hemorrhagic fever (CCHF) in Ukraine were characterized by their geographical factors. The circulation of CCHF virus was found to occur mainly in forest and forest-steppe zones irrespective of the location of administrative regions. The territories found to be most favorable for the prolonged existence of the focus of CCHF were those having high humidity. The possibility of using geoinformation technologies for the correction of the boundaries of natural foci, the evaluation of the influence of geographical factors on the circulation of the virus was shown. 相似文献
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A complex of possible vectors and reservoirs of infection in nature has been investigated in five different nidi of hemorrhagic fever with the renal syndrome in the Primorje territory. 2455 ixodid ticks, 19 458 trombiculid mites, 10 942 gamasid mites and 2138 fleas were collected from 1700 small mammals. It has been established that every investigated nidus differs in a peculiar specific composition and ratio between small mammals and their ectoparasites. 相似文献
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Bolotin EI 《Parazitologiia》2006,40(2):113-123
A new conception of natural focus as anthropo-parasitic system is given by an example of tick-born encephalitis. Problems of natural foci classification and zoning of focal territories, as well as patterns of ecological relations in these systems, are considered. Causes and factors affected expansion of the infection are analyses. 相似文献
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S Ia Markeshin S E Smirnova I L Evstaf'ev 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1991,(9):47-50
Parasitological data, the results of virological and serological investigations of materials, collected in nature and during the study of the immune structure of the population and indicative of the circulation of CCHF, virus in the Crimea and the possibility of human infection, are presented. The data on the spontaneous CCHF virus infection of 4 tick species belonging to the genus Ixodes have been confirmed, and evidence on the participation of Dermacentor marginatus in this process obtained for the first time in this region. The study has revealed for the first time that, besides European brown hares, scilly shrews, common voles and field mice may contribute to the maintenance of the natural foci of this infection. The low activity of the Crimean focus of CCHF may be the result of the intensive use of land, the widely spread stall-feeding of cattle, as well as a sharp decrease in the number of hares on the territories of hunting preserves. 相似文献
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S Ia Markeshin S E Smirnova I L Evstaf'ev 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》1992,(4):28-31
The parasitological data and the results of the virological and serological investigations of materials, collected in nature and in the course of study of the immune structure of the population, are indicative of the circulation of CHF virus in the Crimea and the possibility of human infection. Data on spontaneous infection of four species of Ixodes ticks with CHF virus have been confirmed, including the data, obtained for the first time for this region, on the participation of Dermacentor marginatus in this process. The study has revealed, also for the first time, that, together with European brown hares, the natural foci of this infection may be maintained by scilly shrews, common voles and European wood mice. Low activity of the Crimean focus may be the result of active land reclamation, keeping the cattle stalled in most of the stock-breeding farms of the region, as well as a sharp decline in the number of hares at the territories of hunting preserves. 相似文献
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Moskvitina EA Vodianitskaia SIu Lomov IuM Pichurina NL Orekhov IV Adamenko VI Aĭdinov GT Ryzhkov VIu Emel'ianova ZN Pinchuk VA Dmitrieva TA Pliakov BI Kisilev AI Subbotina VI Feronov DA Vyshemirskiĭ OI 《Zhurnal mikrobiologii, epidemiologii, i immunobiologii》2002,(6):26-30
The epidemiological zoning of the territory of the Rostov region has been made with the use of the epidemic process patterns and the data indicating the links between the landscape and the natural focus of infection. The spread of infected ticks has been established. The participation of several carrier species in the circulation of Crimean-Congo haemorrhagic fever virus has been confirmed. The mosaic character of their distribution and different levels of their contamination is of great prognostic importance. These data will be used for the improvement of epidemiological surveillance in working out the tactics of epizootological surveys and organization of prophylactic measures. 相似文献
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Bolotin EI 《Parazitologiia》1999,33(3):192-197
Conceptions of different authors on the natural focus of zoonosis infections are analysed and an improved definition of this phenomenon is proposed. The natural focus of disease is the antropoecosystem of certain hierarchic level (biosocial system), where the existence and appearance of the infection agent is supported and the disease is realized in people at certain infection rate. 相似文献
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