在从野猪中采集的三刺钝缘蜱中发现了新型格氏立克次体的高流行率。
High prevalence of Rickettsia gravesii sp. nov. in Amblyomma triguttatum collected from feral pigs.
机构信息
School of Veterinary and Biomedical Sciences, Division of Health Sciences, Murdoch University, South Street, Perth, Western Australia 6150, Australia.
出版信息
Vet Microbiol. 2010 Nov 20;146(1-2):59-62. doi: 10.1016/j.vetmic.2010.04.018. Epub 2010 Apr 27.
A survey of ectoparasites on feral pigs identified two commonly occurring ixodid tick species; Amblyomma triguttatum triguttatum and Ixodes australiensis. Molecular screening of A. t. triguttatum and I. australiensis for the presence of Rickettsia species detected the presence of rickettsiae belonging to the Spotted Fever Group (SFG) in 78.4% of screened A. t. triguttatum. None of the screened I. australiensis were positive for rickettsiae. Sequence analysis of the gltA and ompA loci of positive Rickettsia isolates were 100% homologous to the newly described species Rickettsia gravesii sp. nov. BWI-1. Serological screening of feral pigs detected antibodies to SFG Rickettsia in 50% of serum samples tested. These findings suggest that A. t. triguttatum is a vector/reservoir for R. gravesii sp. nov.
对野猪寄生外寄生虫的调查确定了两种常见的硬蜱物种；三形革蜱和澳大利亚革蜱。对 A. t. triguttatum 和 I. australiensis 进行的立克次体物种分子筛查检测到，在筛查的 A. t. triguttatum 中，78.4%存在属于斑点热群（SFG）的立克次体。筛选的 I. australiensis 均未检测到立克次体。阳性立克次体分离株的 gltA 和 ompA 基因座的序列分析与新描述的物种格氏立克次体完全同源。BWI-1。对野猪的血清学筛查检测到 50%的血清样本中存在 SFG 立克次体抗体。这些发现表明三形革蜱是格氏立克次体的传播媒介/宿主。
Zotero 插件