The Bartonella species are zoonotic agents that infect mammals and are transmitted by arthropod vectors. Approximately 18 distinct genotypes cause diseases in humans, and may be spread by both domestic and wild animals. In Brazil, Bartonella genotypes have been identified in several species of wild mammals, and in the present study, we analyzed samples from non-human primates (marmosets), marsupials, rodents, and bats, and compared them with the genotypes described in mammals from Brazil, to examine the distribution of Bartonella genotypes in two impacted areas of Rio de Janeiro state, in southeastern Brazil. We used polymerase chain reaction (PCR) methods to detect the Bartonella DNA using partial sequences of the gltA, ftsZ, and groEL genes. We generated Bayesian inference and maximum likelihood trees to characterize the positive PCR samples and infer the phylogenetic relationships of the genotypes. A total of 276 animals were captured, including 110 bats, 91 rodents, 38 marsupials, and 37 marmosets. The DNA of Bartonella was amplified from tissue samples collected from 12 (4.34%) of the animals, including eight rodents – Akodon cursor (5/44) and Nectomys squamipes (3/27) – and four bats, Artibeus lituratus (3/58) and Carollia perspicillata (1/15). We identified Bartonella genotypes closely related to those described in previous studies, as well as new genotypes in both the rodent and the bat samples. Considering the high diversity of the Bartonella genotypes and hosts identified in the present study, further research is needed to better understand the relationships between the different Bartonella genotypes and their vectors and host species. The presence of Bartonella in the wild rodents and bats from the study area indicates that the local human populations may be at risk of infection by Bartonella due to the spillover of these strains from the wild environment to domestic and peri-domestic environments.

在巴尔物种感染哺乳动物和节肢动物媒介传输人畜共患代理。大约有18种不同的基因型在人类中引起疾病​​，并且可能被家养动物和野生动物传播。在巴西，已在几种野生哺乳动物物种中鉴定出巴尔通体的基因型，在本研究中，我们分析了非人类灵长类动物（，猴），有袋动物，啮齿动物和蝙蝠的样本，并将它们与来自巴西，以检查巴西东南部里约热内卢州的两个受灾地区的巴尔通体基因型分布。我们使用聚合酶链反应（PCR）方法来检测汉赛巴尔使用的部分序列的DNAgltA，ftsZ和groEL基因。我们生成了贝叶斯推断树和最大似然树，以表征阳性PCR样本并推断基因型的系统发育关系。总共捕获了276只动物，包括110只蝙蝠，91只啮齿动物，38只有袋动物和37只mar猴。的DNA巴尔通体从动物从12（4.34％）收集组织样品扩增，包括8个啮齿动物-南美原鼠属光标（5/44）和泳鼠属短尾（3/27） -和四个蝙蝠，美洲果蝠属lituratus（3/58 ）和Carollia perspicillata（1/15）。我们确定了巴尔通体基因型与先前研究中描述的基因型密切相关，以及啮齿动物和蝙蝠样品中的新基因型。考虑到本研究中鉴定的巴尔通体基因型和宿主的高度多样性，需要进一步研究以更好地了解不同巴尔通体基因型与其载体和宿主物种之间的关系。研究区的野生啮齿动物和蝙蝠中存在巴尔通体，这表明由于这些菌株从野外环境向家庭和家庭周围环境的扩散，当地人群可能面临巴尔通体感染的风险。