The species of the genus Dirofilaria are filarial parasites causing zoonotic infections in humans with an increasing incidence in temperate and tropical areas of the world. Due to its classification as a vector-borne disease, the most important factors influencing dirofilariosis transmission are those related to climate, such as temperature and humidity. However, other factors linked with human behaviour can influence the distribution of the parasite. Although the Russian Federation could be considered as a non-suitable area for Dirofilaria spp. transmission due to its climatic conditions, one third of the human cases of dirofilariosis have been declared in this country. Here, seroepidemiological data on human dirofilariosis for five different regions distributed throughout the Russian Federation (Rostov, Moscow, Ekaterinburg, Yakutia and Khabarovsk) were obtained. A total of 940 serum samples from totally random donors living in these areas were analysed by enzyme-linked immunosorbent assay for the detection of anti-Dirofilaria immitis immunoglobulin G antibodies. Similar seroprevalence data ranging from 3.41% in Yakutia to 6.95% in Khabarovsk, with no significant correlation with climatic data of yearly average temperature and rainfall from these regions were found. These results suggest that other factors probably related to human behaviour, and not only climatic conditions, might be facilitating the spread of human dirofilariosis in these areas.

中文翻译：

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人类血清阳性率数据表明，除气候条件外，还有其他因素影响俄罗斯联邦的丝虫病传播

属的种类恶丝虫丝虫是引起人类人畜共患感染的丝虫寄生虫，在世界温带和热带地区的发病率越来越高。由于它被归类为媒介传播疾病，影响恶丝虫病传播的最重要因素是与气候有关的因素，例如温度和湿度。然而，与人类行为相关的其他因素也会影响寄生虫的分布。尽管俄罗斯联邦可被视为不适合恶丝虫spp. 由于其气候条件的传播，该国已宣布三分之一的人感染恶丝虫病病例。在这里，获得了分布在俄罗斯联邦的五个不同地区（罗斯托夫、莫斯科、叶卡捷琳堡、雅库特和哈巴罗夫斯克）的人类恶丝虫病血清流行病学数据。通过酶联免疫吸附试验分析来自生活在这些地区的完全随机供体的总共 940 份血清样本，以检测抗-毛丝虫免疫球蛋白 G 抗体。类似的血清阳性率数据从雅库特的 3.41% 到哈巴罗夫斯克的 6.95%，与这些地区的年平均气温和降雨量的气候数据没有显着相关性。这些结果表明，可能与人类行为有关的其他因素，而不仅仅是气候条件，可能会促进人类恶丝虫病在这些地区的传播。