Papa Anna, Kontana Anastasia, Tsioka Katerina, Chaligiannis Ilias, Sotiraki Smaragda
Department of Microbiology, Medical School, Aristotle University of Thessaloniki, 541 24, Thessaloniki, Greece.
Veterinary Research Institute, HAO-Demeter, NAGREF Campus, Thessaloniki, Greece.
Parasitol Res. 2017 Nov;116(11):3057-3063. doi: 10.1007/s00436-017-5616-6. Epub 2017 Sep 17.
Crimean-Congo hemorrhagic fever virus (CCHFV) is transmitted to humans mainly through the bite of infected ticks. In Greece, only one clinical case has been observed, in 2008, but the seroprevalence in humans is relatively high (4.2%). To have a first insight into the circulation of CCHFV in Greece, 2000 ticks collected from livestock during 2012-2014 were tested. CCHFV was detected in 36 of the 1290 (2.8%) tick pools (1-5 ticks per pool). Two genetic lineages were identified: Europe 1 and Europe 2. Most Europe 1 sequences were obtained from Rhipicephalus sanguineus sensu lato ticks, while most Europe 2 sequences were recovered from Rhipicephalus bursa ticks. The number of collected Hyalomma marginatum ticks (the principal vector of CCHFV) was low (0.5% of ticks) and all were CCHFV negative. Since it is not known how efficient ticks of the Rhipicephalus genus are as vectors of the virus, laboratory studies will be required to explore the role of Rhipicephalus spp. ticks in CCHFV maintenance and transmission.
克里米亚-刚果出血热病毒（CCHFV）主要通过受感染蜱虫的叮咬传播给人类。在希腊，2008年仅观察到1例临床病例，但人群血清阳性率相对较高（4.2%）。为初步了解CCHFV在希腊的传播情况，对2012年至2014年期间从家畜身上采集的2000只蜱虫进行了检测。在1290个蜱虫样本池（每个样本池1至5只蜱虫）中的36个（2.8%）检测到了CCHFV。鉴定出了两个遗传谱系：欧洲1型和欧洲2型。大多数欧洲1型序列来自血红扇头蜱（Rhipicephalus sanguineus sensu lato），而大多数欧洲2型序列来自囊形扇头蜱（Rhipicephalus bursa）。采集到的边缘璃眼蜱（CCHFV的主要传播媒介）数量较少（占蜱虫总数的0.5%），且所有样本均为CCHFV阴性。由于尚不清楚扇头蜱属蜱虫作为该病毒传播媒介的效率如何，因此需要开展实验室研究来探究扇头蜱属蜱虫在CCHFV维持和传播中的作用。
