背景:跳蚤和蜱是立克次体属和巴尔通体属中多种病原体的载体,它们在人类和其他动物中引起疾病。尽管在中美洲所有国家都有人立克次体病和巴顿病的报道,已经进行了有限的研究,以调查跳蚤和蜱传播立克次体病和巴顿病的自然周期,尤其是在危地马拉。方法:我们通过从狗中取样蜱和跳蚤,评估了危地马拉农村地区人畜共患疾病风险的前哨犬寄生虫,然后对其进行鉴定,并分别筛查立克次体和巴尔通体。结果:共调查77户,其中80.52%有狗。总的来说,检查了133只狗的跳蚤和蜱,其中68.42%有跳蚤,35.34%有蜱。从受感染的狗身上共收集到433只跳蚤和181只蜱,从房屋墙壁上收集了另外33个蜱虫。确定了三种跳蚤:Ctenocephalidesfelis(70%),大黄(11.8%),和Pulexsp.(17.8%)。在收集的蜱人中,97%是血根虫,其余是刺眼肌,A.木耳,还有A.Ovale.在6个C.felis中检测到立克次体,在一个Pulexsp.,在两个血液中,而在一个C.felis中检测到CandidatusR.senegalensis。只在跳蚤中检测到巴尔通体,包括三个Pulexsp。感染了B.vinsonii亚种。Berkhoffii,B.henselae,和巴尔通体sp。,分别,和11个感染了B.henselae的C.felis。结论:本研究报告了念珠菌和B.vinsonii亚种。Berkhoffii第一次在危地马拉,并表明人类和狗接触立克次体和巴尔通体的潜在风险。这些结果表明,狗提供了与危地马拉农村地区管理人类潜在暴露于跳蚤和蜱传播病原体相关的关键信息。
UNASSIGNED: Fleas and ticks serve as vectors of multiple pathogens in the genera Rickettsia and Bartonellathat cause diseases in humans and other animals. Although human rickettsiosis and bartonellosis have been reported in all countries in Central America, limited research has been conducted to investigate the natural cycles of flea- and tick-borne rickettsiosis and bartonellosis, especially in Guatemala.
UNASSIGNED: We evaluated dog parasites as sentinels for zoonotic disease risk in rural Guatemala by sampling ticks and fleas from dogs, which were then identified and individually screened for Rickettsia and Bartonella.
UNASSIGNED: A total of 77 households were surveyed and 80.52% of them had dogs. Overall, 133 dogs were examined for fleas and ticks, of which 68.42% had fleas and 35.34% had ticks. A total of 433 fleas and 181 ticks were collected from the infested dogs, with an additional 33 ticks collected from house walls. Three flea species were identified: Ctenocephalides felis (70%), Echidnophaga gallinacea(11.8%), and Pulex sp. (17.8%). Among the collected ticks, 97% were Rhipicephalus sanguineus with the rest being Amyblyomma cajennense, A. auricularium, and A. ovale. Rickettsia felis were detected in six C. felis, in one Pulex sp., and in two R. sanguineus, while Candidatus R. senegalensis was detected in one C. felis. Bartonella was detected only in fleas, including three Pulexsp. infected with B. vinsonii subsp. Berkhoffii, B. henselae, and Bartonella sp., respectively, and 11 C. felis infected with B. henselae.
UNASSIGNED: This study reports Candidatus R. senegalensis and B. vinsonii subsp. Berkhoffiiin Guatemala for the first time, and indicates the potential risk of human and dog exposure to Rickettsia and Bartonella species. These results show that dogs provide critical information relevant to managing human potential exposure to flea- and tick-borne pathogens in rural Guatemala.