Shpynov S N, Parola P, Rudakov N V, Samoĭlenko I E, Tankibaev M A, Tarasevich I V, Raoult D, Kovalev N G, Chubirko M I, Gavrilov A P
Med Parazitol (Mosk). 2003 Jul-Sep(3):20-4.
R. slovaca was first detected in the ticks D. marginatus gathered in the Stavropol Territory and the Voronezh Region (European Russia). The recently discovered rickettsial genotype DnS14 was first found in the ticks D. silvarum from Buryatia and D. niveus from the Karaganda Region (Central Kazakhstan). The rickettsial genotype RpA4 was most common in the ticks of the genus Dermacentor in Russia and Central Kazakhstan. An analysis of the spread of rickettsias of the STF group shows their close ecological relation to definite types of Ixodes. The rickettsias R. slovaca and RpA4 co-exist in the ticks D. marginatus and D. reticulatus (the western part of a Dermacentor area in Eurasia) and DnS14 and R. sibirica do in D. nuttalli and D. silvarum (the eastern part of the area). D. marginatus and D. reticulatus in the areas characterized by the most specific saturation of a Dermacentor area (the south of West Siberia) are carriers and reservoir of R. sibirica. The rickettsial genotype DnS28 may be now considered to be environmentally associated with one species of ticks--D. nuttalli. At least 6 genotypes of STF rickettsias--R. sibirica, R. astrahan fever (R. conorii), R. slovaca, RpA4, DnS14, DnS28--has been currently identified in Russia and Kazakhstan.
斯洛伐克立克次体最初是在斯塔夫罗波尔边疆区和沃罗涅日州（俄罗斯欧洲部分）采集的边缘革蜱中检测到的。最近发现的立克次体基因型DnS14首次是在布里亚特的森林革蜱和卡拉干达地区（哈萨克斯坦中部）的雪蜱中发现的。立克次体基因型RpA4在俄罗斯和哈萨克斯坦中部的革蜱属蜱中最为常见。对斑点热群立克次体传播情况的分析表明，它们与特定种类的硬蜱存在密切的生态关系。斯洛伐克立克次体和RpA4在边缘革蜱和网纹革蜱（欧亚大陆革蜱分布区的西部）中共存，而DnS14和西伯利亚立克次体在纳氏革蜱和森林革蜱（分布区的东部）中共存。在革蜱分布区特异性最强的地区（西西伯利亚南部），边缘革蜱和网纹革蜱是西伯利亚立克次体的携带者和储存宿主。立克次体基因型DnS28目前可能被认为在环境上与一种蜱——纳氏革蜱相关。目前在俄罗斯和哈萨克斯坦已鉴定出至少6种斑点热群立克次体基因型——西伯利亚立克次体、阿斯特拉罕热立克次体（康氏立克次体）、斯洛伐克立克次体、RpA4、DnS14、DnS28。
