High National Veterinary School, Issad Abbes Avenue, Oued Smar, Algiers, Algeria.
Center of Rickettsiosis and Arthropod-Borne Diseases, Hospital Universitario San Pedro-CIBIR, Logroño, Spain.
Ticks Tick Borne Dis. 2019 Jun;10(4):924-928. doi: 10.1016/j.ttbdis.2019.04.018. Epub 2019 Apr 27.
Livestock and their ectoparasites are involved in the epidemiology of several zoonotic diseases. Studies regarding the molecular detection of infectious agents in ticks from Northwestern Algeria are scarce. Thus, the presence of spotted fever group Rickettsia spp., Anaplasmataceae microorganisms and Coxiella burnetii was investigated in ticks collected from ruminants in Sidi Bel Abbes and Saida provinces. Rickettsia aeschlimannii was detected in one Hyalomma excavatum pool and one H. marginatum pool. Moreover, 'Candidatus Rickettsia barbariae' was found in one H. excavatum and six Rhipicephalus bursa pools. Lastly, Coxiella burnetii was amplified in two H. excavatum and two R. bursa pools. No Anaplasmataceae bacterium was detected. This study demonstrates the presence of the tick-associated microorganism 'Candidatus R. barbariae' in the North of Africa, and corroborates the presence of the zoonotic pathogens R. aeschlimannii and C. burnetii in Algeria.
家畜及其外寄生虫与几种人畜共患疾病的流行病学有关。关于来自阿尔及利亚西北部的蜱中的感染性病原体的分子检测研究很少。因此，在来自西迪贝勒阿贝斯和赛伊达省的反刍动物中采集的蜱中调查了斑点热群立克次体、无形体科微生物和贝氏柯克斯体的存在。在一个钝缘蜱池和一个边缘革蜱池中检测到了拉沙立克次体。此外，在一个钝缘蜱和六个革蜱池中发现了“候选巴尔通体”。最后，在两个钝缘蜱和两个革蜱池中扩增了贝氏柯克斯体。未检测到无形体科细菌。本研究表明，与蜱相关的微生物“候选巴尔通体”存在于北非，并且证实了拉沙立克次体和贝氏柯克斯体这两种人畜共患病病原体在阿尔及利亚的存在。
