biostudies-literaturedo Amaral RB“São Paulo State Research Support Foundation”São Paulo Research FoundationR.B.A.’s Doctorate ScholarshipNational Council for Scientific and Technological Development1609https://www.ebi.ac.uk/biostudies/studies/S-EPMC9414547biostudies-literatureUnknown10(8)The genus <i>Bartonella</i> (Rhizobiales: Bartonellaceae) encompasses facultative intracellular Gram-negative alphaproteobacteria that parasitize mainly erythrocytes and endothelial cells, as well as macrophages, monocytes and dendritic cells. Although they can infect numerous mammal species and arthropod vectors worldwide, reports of <i>Bartonella</i> infections in marsupials are scarce. In fact, such agents have only been detected in marsupials and/or associated ectoparasites in Australia and the United States of America until the present moment. The present study aimed to isolate and characterize molecularly, morphologically and phenotypically <i>Bartonella</i> infecting free-living marsupials sampled in the Brazilian Pantanal, the largest wetland in South America. Two marsupials were cMicroorganismsFirst Report of <i>Bartonella</i> spp. in Marsupials from Brazil, with a Description of <i>Bartonella harrusi</i> sp. nov. and a New Proposal for the Taxonomic Reclassification of Species of the Genus <i>Bartonella</i>.PMC94145472018/02753-0303701/2021-8308768/2017-5401403/2016-52018/19672-2Dias CMAndre MRdo Amaral RBCardozo MVFurquim MECVarani AMda Silva ARHerrera HMMachado RZAssis WOfalseFirst Report of <i>Bartonella</i> spp. in Marsupials from Brazil, with a Description of <i>Bartonella harrusi</i> sp. nov. and a New Proposal for the Taxonomic Reclassification of Species of the Genus <i>Bartonella</i>.The genus <i>Bartonella</i> (Rhizobiales: Bartonellaceae) encompasses facultative intracellular Gram-negative alphaproteobacteria that parasitize mainly erythrocytes and endothelial cells, as well as macrophages, monocytes and dendritic cells. Although they can infect numerous mammal species and arthropod vectors worldwide, reports of <i>Bartonella</i> infections in marsupials are scarce. In fact, such agents have only been detected in marsupials and/or associated ectoparasites in Australia and the United States of America until the present moment. The present study aimed to isolate and characterize molecularly, morphologically and phenotypically <i>Bartonella</i> infecting free-living marsupials sampled in the Brazilian Pantanal, the largest wetland in South America. Two marsupials were c2022-01-01T00:00:00Z2022 Aug2026-04-08T11:46:48.449Z2025-04-19T22:49:13.218ZS-EPMC94145473601402510.3390/microorganisms10081609