{"title":"[CURRENT IDEAS ON OBLIGATE AND FACULTATIVE RELATIONSHIPS BETWEEN MAN AND THE DIROFILARIASIS PATHOGEN DIROFILARIA (N.) REPENS].","authors":"V G Supryaga, V M Rakova, E N Morozov","doi":"","DOIUrl":null,"url":null,"abstract":"<p><p>The ability of D. repens to complete its ontogenesis in man points to their obligate, rather than facultative rela- tionships. The fact that microfilariae are rarely found in human blood or are absent there may be associated with the removal of developing dirofilariae from humans in earlier than they achieve sexual maturity. Facultative ecological relationships to mosquitoes may be one of the reasons for limitation of human invasion cases. However, in long-standing microfilaremia in man (an obligate host), D.repens may take part in the epidemiological chain of dirofilariasis as a source of invasion.</p>","PeriodicalId":18434,"journal":{"name":"Meditsinskaia parazitologiia i parazitarnye bolezni","volume":" ","pages":"3-7"},"PeriodicalIF":0.0000,"publicationDate":"2016-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Meditsinskaia parazitologiia i parazitarnye bolezni","FirstCategoryId":"1085","ListUrlMain":"","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
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Abstract
The ability of D. repens to complete its ontogenesis in man points to their obligate, rather than facultative rela- tionships. The fact that microfilariae are rarely found in human blood or are absent there may be associated with the removal of developing dirofilariae from humans in earlier than they achieve sexual maturity. Facultative ecological relationships to mosquitoes may be one of the reasons for limitation of human invasion cases. However, in long-standing microfilaremia in man (an obligate host), D.repens may take part in the epidemiological chain of dirofilariasis as a source of invasion.
D. repens在人体内完成自身形成的能力表明它们之间的义务关系，而不是兼性关系。在人类血液中很少发现微丝虫病或没有微丝虫病，这一事实可能与在人类达到性成熟之前将发育中的双丝虫病从人体中清除有关。与蚊子的兼性生态关系可能是人类入侵病例有限的原因之一。然而，在人类(专性宿主)的长期微丝虫病中，大鼠可能作为一种入侵源参与到蝇蛆病的流行病学链中。
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