Istituto Zooprofilattico Sperimentale della Sardegna, Sassari, Italy.
Dipartimento di Medicina Veterinaria, Università degli studi di Sassari, Italy.
Ticks Tick Borne Dis. 2018 Jan;9(1):31-36. doi: 10.1016/j.ttbdis.2017.10.012. Epub 2017 Oct 26.
Anaplasma species are globally distributed tick-borne bacteria causing a range of clinical conditions in domestic animals, wildlife, and human. Nevertheless, data on presence and distribution of Anaplasma strains in ticks are still lacking, especially in the Mediterranean region. This study reports the molecular identification, genetic characterization and phylogeny of Anaplasma strains of both veterinary and zoonotic importance in ticks collected from domestic and wild hosts sampled in a typical Mediterranean warm temperate region, the island of Sardinia. Results reveal the presence of A. ovis in Rhipicephalus bursa and R. sanguineus sensu lato ticks; A. platys-like was found in R. bursa ticks; while A. platys and A. phagocytophilum were detected in Hyalomma marginatum and H. lusitanicum ticks. Investigating the occurrence of different Anaplasma species in ticks from domestic and wild hosts improves the knowledge of tick-borne diseases in the Mediterranean area, and has implications in defining vector species distribution and risk assessment.
无形体属（Anaplasma species）是一种广泛分布于全球的蜱传细菌，能引起家畜、野生动物和人类的多种临床病症。然而，有关蜱虫中无形体菌株的存在和分布的数据仍然缺乏，特别是在地中海地区。本研究报告了在典型的地中海温暖温带地区撒丁岛采集的来自家养和野生宿主的蜱虫中，具有兽医和人畜共患病重要性的无形体菌株的分子鉴定、遗传特征和系统发育。结果显示，在璃眼蜱属（Rhipicephalus）和扇头蜱属（Rhipicephalus sanguineus sensu lato）蜱虫中存在绵羊无形体（A. ovis）；在璃眼蜱属蜱虫中发现了类似于平角无浆体（A. platys-like）的菌株；在边缘革蜱（Hyalomma marginatum）和卢氏血蜱（H. lusitanicum）蜱虫中检测到平角无浆体（A. platys）和嗜吞噬细胞无形体（A. phagocytophilum）。调查来自家养和野生宿主的蜱虫中不同无形体物种的发生情况，可提高对地中海地区蜱传疾病的认识，并有助于确定媒介物种的分布和风险评估。
