Epidemiology of Rickettsia spp. in Atlantic rainforest areas of island and seashore mainland, southern Brazil.

dc.creatorKmetiuk, Louise Bach
dc.creatorPaula, Warley Vieira de Freitas
dc.creatorPádua, Gracielle Teles
dc.creatorDelai, Ruana Renostro
dc.creatorFreitas, Aaronson Ramathan
dc.creatorFarinhas, João Henrique
dc.creatorPaula, Luiza Gabriella Ferreira de
dc.creatorGiuffrida, Rogério
dc.creatorPimpão, Claudia Turra
dc.creatorSantarém, Vamilton Álvares
dc.creatorSantos, Andrea Pires dos
dc.creatorFigueiredo, Fabiano Borges
dc.creatorKrawczak, Felipe da Silva
dc.creatorBiondo, Alexander Welker
dc.date2022-12-22T14:16:45Z
dc.date2022-12-22T14:16:45Z
dc.date2022
dc.date.accessioned2023-09-26T23:36:59Z
dc.date.available2023-09-26T23:36:59Z
dc.identifierKMETIUK, Louise Bach et al. Epidemiology of Rickettsia spp. In Atlantic rainforest areas of island and seashore mainland, southern Brazil. Transbound. Emerg. Dis., p. 1–9, 2022.
dc.identifier1865-1682
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/56161
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8892434
dc.descriptionNon-fatal cases rickettsial infection with different clinical features than the classic BSF (Brazilian Spotted Fever) have been reported in seashore areas of Paraná state, southern Brazil. In addition, Amblyomma ovale tick infected by Rickettsia parkeri strain Atlantic rainforest has been also described in this area. Accordingly, the aim of this study was to investigate the occurrence of anti-Rickettsia spp. antibodies in human and dog populations, Rickettsia spp. infection in ticks from oceanic islands and seashore mainland cities of southern Brazil. Serum samples were collected from 328 persons and their 282 dogs from three islands and two seashore mainland cities. A total of 211 ticks were collected from dogs, identified as A. ovale and R. sanguineus. In overall, 40 of 328 (12.2%) human samples were seropositive for Rickettsia spp., including 21 of 190 (11.1%) on islands and 19 of 138 (13,7%) on seashore mainland, and 62 of 282 (22.0%) dog samples, including 31 of 153 (20.3%) on islands and 31 of 129 (24.0%) in seashore mainland areas. In overall, nine of 82 (11%) ticks were positive to real-time PCR assay targeting a fragment of the rickettsial gitA gene, including two of 64 (3.1%) Rickettsia sanguineus and seven of 18 (38,9%) A. ovale, of which four were infected with the R. parkeri strain Atlantic rainforest. Despite no association between risk factors and Rickettsia spp. seropositivity was found in human beings, access to natural areas (p=.011) and tick infestation (p=.004) was significantly associated to dog seropositivity. The serological and molecular findings herein have confirmed previous tick and clinical case reports and enlarged the geographical occurrence of A. ovale infected by R. parkeri strain Atlantic rainforest in oceanic islands and seashore mainland cities of Paraná State, indicating a new likely transmission area of this new rickettsial infection in human beings and dogs of southern Brazil.
dc.formatapplication/pdf
dc.languagepor
dc.publisherWiley
dc.rightsopen access
dc.subjectOne Health
dc.subjectSpotted Fever Group Rickettsiosis
dc.subjectVector Borne Diseases
dc.subjectSalud Única
dc.subjectRickettsiosis Exantemáticas
dc.subjectEnfermedades Transmitidas por Vectores
dc.subjectUne seule santé
dc.subjectRickettsiose du groupe des fièvres boutonneuses
dc.subjectSaúde Única
dc.subjectRickettsiose do Grupo da Febre Maculosa
dc.subjectDoenças Transmitidas por Vetores
dc.titleEpidemiology of Rickettsia spp. in Atlantic rainforest areas of island and seashore mainland, southern Brazil.
dc.typeArticle


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