Jouglin M, Perez G, Butet A, Malandrin L, Bastian S
INRA, UMR1300 Biology, Epidemiology and Risk Analysis in Animal Health, Nantes, France; LUNAM Université, Oniris, UMR BioEpAR, Nantes, France.
INRA, UMR1300 Biology, Epidemiology and Risk Analysis in Animal Health, Nantes, France; LUNAM Université, Oniris, UMR BioEpAR, Nantes, France; UMR CNRS 6553-Université de Rennes 1-ECOBIO, Rennes, France.
Vet Parasitol. 2017 Apr 30;238:58-60. doi: 10.1016/j.vetpar.2017.03.020. Epub 2017 Mar 25.
In order to evaluate the zoonotic risk due to Babesia spp., especially B. microti, we investigated their presence in 597 individuals of five small mammal species and in 2620 questing nymphs of Ixodes ricinus in rural landscapes of Western France (Brittany). Small mammals (rodents and shrews) are indeed suspected to be reservoir hosts for B. microti, and the tick I. ricinus is the vector of the three main zoonotic species in Europe, i.e. B. divergens, B. venatorum and B. microti. Only one bank vole carried B. microti (genotype "Munich") and only 13 and 2 nymphs of Ixodes ricinus ticks carried B. venatorum and B. capreoli respectively. According to these results, prevalences observed for zoonotic Babesia (0.17% for small mammals and 0.50% for ticks), indicate that exposure of humans to this infectious agent is probably low in western France.
为了评估巴贝斯虫属（Babesia spp.）尤其是微小巴贝斯虫（B. microti）带来的人畜共患病风险，我们在法国西部（布列塔尼）乡村地区调查了597只5种小型哺乳动物以及2620只饥饿的蓖麻硬蜱若虫（Ixodes ricinus）中这些寄生虫的存在情况。小型哺乳动物（啮齿动物和鼩鼱）确实被怀疑是微小巴贝斯虫的储存宿主，而蓖麻硬蜱是欧洲三种主要人畜共患病原体的传播媒介，即分歧巴贝斯虫（B. divergens）、嗜吞噬细胞无形体（B. venatorum）和微小巴贝斯虫。仅1只棕色田鼠携带微小巴贝斯虫（基因型“慕尼黑”），分别只有13只和2只蓖麻硬蜱若虫携带嗜吞噬细胞无形体和肩突硬蜱巴贝斯虫（B. capreoli）。根据这些结果，所观察到的人畜共患巴贝斯虫的患病率（小型哺乳动物为0.17%，蜱为0.50%）表明，在法国西部，人类接触这种传染源的可能性可能较低。
