Sambou Masse, Faye Ngor, Bassène Hubert, Diatta Georges, Raoult Didier, Mediannikov Oleg
Unité de Recherche en Maladies Infectieuses et Tropicales Emergentes, Aix-Marseille Université, UMR CNRS 7278, IRD 198, INSERM U1095, Faculte de Medecine, 27 Bd Jean Moulin, 13385 Marseille cedex 5, France et campus IRD/UCAD, Dakar, Senegal; Université Cheikh Anta Diop de Dakar, Faculté des Sciences et Techniques, Département de Biologie Animale, Laboratoire de Parasitologie Générale, Dakar, Senegal.
Université Cheikh Anta Diop de Dakar, Faculté des Sciences et Techniques, Département de Biologie Animale, Laboratoire de Parasitologie Générale, Dakar, Senegal.
Ticks Tick Borne Dis. 2014 Sep;5(5):552-6. doi: 10.1016/j.ttbdis.2014.04.002. Epub 2014 Jun 4.
The spotted fevers, caused by the Rickettsia bacteria, are a group of emerging diseases that are responsible for significant human morbidity. In Africa, the distribution of different species of Rickettsia in their tick vectors is poorly studied. We have collected 1169 hard ticks from 5 different species in the northern Senegal, close to the Saharan border. In a far northern collection site, corresponding to the Rickettsia africae distribution area, we collected three Amblyomma variegatum ticks infected by R. africae. Rickettsia africae was also identified in a Hyalomma marginatum rufipes tick, which may represent the secondary host for the pathogen. Rickettsia aeschlimannii was identified in H. m. rufipes, Rhipicephalus evertsi evertsi, and Hyalomma impeltatum ticks.
由立克次氏体细菌引起的斑点热是一组新出现的疾病，可导致严重的人类发病。在非洲，立克次氏体不同物种在其蜱虫媒介中的分布情况研究较少。我们在塞内加尔北部靠近撒哈拉边境的地区，从5个不同物种中采集了1169只硬蜱。在一个最北部的采集点，对应非洲立克次氏体分布区域，我们采集到三只感染了非洲立克次氏体的杂色花蜱。在一只边缘璃眼蜱中也鉴定出了非洲立克次氏体，它可能是该病原体的第二宿主。在边缘璃眼蜱、埃氏扇头蜱和全沟硬蜱中鉴定出了艾氏立克次氏体。
