Maia Maerle O, Koppe Valdinei C, Muñoz-Leal Sebastián, Martins Thiago F, Marcili Arlei, Labruna Marcelo B, Pacheco Richard Campos
Post-Graduate Program in Veterinary Science, Faculty of Veterinary Medicine, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá, MT, 78060-900, Brazil.
Laboratory of Mastozoology, Department of Biology and Zoology, Institute of Biosciences, Federal University of Mato Grosso (UFMT), Av. Fernando Corrêa da Costa, 2367, Boa Esperança, Cuiabá, MT, 78060-900, Brazil.
Exp Appl Acarol. 2018 Dec;76(4):523-535. doi: 10.1007/s10493-018-0323-2. Epub 2018 Nov 15.
We report tick infestations and rickettsial detection in ticks infesting free-living wild mammals (Monodelphis domestica, Tolypeutes tricinctus, Thrichomys inermis and Kerodon rupestris) captured in the Caatinga ecoregion of Bahia state, northeastern Brazil, during September to December 2016. Overall, 117 ticks (61 larvae, 25 nymphs, 25 males, 6 females) belonging to two genera, and at least three species were collected: Amblyomma auricularium, Amblyomma parvum, Amblyomma sp., Ornithodoros rietcorreai and an unidentified Ornithodoros sp. We provide new host records to the rodent T. inermis parasitized by larva and nymphs of A. auricularium and to the marsupial M. domestica infested by larvae of A. auricularium. Furthermore, we describe new tick-host association for larvae of O. rietcorreai on the rodents K. rupestris and T. inermis. Concerning tick-Rickettsia associations, we detected Rickettsia amblyommatis and an uncharacterized species of Rickettsia belonging to the spotted fever group (SFG) in both A. auricularium and A. parvum. Additionally, 'Candidatus Rickettsia andeanae' was detected in A. parvum as well.
我们报告了2016年9月至12月期间在巴西东北部巴伊亚州卡廷加生态区捕获的自由生活野生哺乳动物（家短尾负鼠、三带犰狳、裸尾犰狳和粗尾豚鼠）身上的蜱虫感染情况以及蜱虫中rickettsial的检测结果。总体而言，共收集到117只蜱虫（61只幼虫、25只若虫、25只雄性、6只雌性），分属于两个属，至少有三个物种：耳状花蜱、微小花蜱、花蜱属、里氏钝缘蜱和一种未鉴定的钝缘蜱属物种。我们提供了新的宿主记录，即被耳状花蜱幼虫和若虫寄生的裸尾犰狳，以及被耳状花蜱幼虫感染的家短尾负鼠。此外，我们描述了里氏钝缘蜱幼虫与粗尾豚鼠和裸尾犰狳之间新的蜱 - 宿主关联。关于蜱 - 立克次体的关联，我们在耳状花蜱和微小花蜱中均检测到了安氏立克次体和一种属于斑点热群（SFG）的未鉴定立克次体物种。此外，在微小花蜱中还检测到了“候选安第斯立克次体”。
