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2025-01-01
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- IOC - Artigos de Periódicos [12500]
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NEOTROPICAL WILD RODENTS AKODON AND OLIGORYZOMYS (CRICETIDAE: SIGMODONTINAE) AS IMPORTANT CARRIERS OF PATHOGENIC RENAL LEPTOSPIRA IN THE ATLANTIC FOREST, IN BRAZIL
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Universidade Federal Fluminense. Instituto Biomédico. Laboratório de Bacteriologia Veterinária. Niterói, RJ, Brasil.
Universidade Federal Fluminense. Instituto Biomédico. Laboratório de Bacteriologia Veterinária. Niterói, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil.
Universidade Federal Fluminense. Instituto Biomédico. Laboratório de Bacteriologia Veterinária. Niterói, RJ, Brasil.
Universidade Federal Fluminense. Instituto Biomédico. Laboratório de Bacteriologia Veterinária. Niterói, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Laboratório de Biologia e Parasitologia de Mamíferos Silvestres Reservatórios. Rio de Janeiro, RJ, Brasil.
Universidade Federal Fluminense. Instituto Biomédico. Laboratório de Bacteriologia Veterinária. Niterói, RJ, Brasil.
Abstract
Leptospirosis is an important worldwide zoonosis, caused by a bacterium of the genus Leptospira. For a better
understanding of the disease, it is relevant the application of the one health concept. The Atlantic Forest is
considered a biodiversity hotspot, with a great endemism of species and despite its importance and proximity to
urban areas, the potential role of its fauna as carriers of infectious agents is still poorly understood. Although it is
well-known that rats and mice are key reservoirs of leptospires, particularly Rattus norvegicus, wild rodents have
also been revealed as reservoirs of leptospiral strains. Thus, the purpose of this study was to investigate the role
of the sigmodontine rodents from genera Akodon and Oligoryzomys as pathogenic Leptospira carriers in the
Atlantic Forest. We studied 52 Akodon spp. and 15 Oligoryzomys spp. from three areas. Overall 30% were PCRpositive
for pathogenic Leptospira, 27% (14/52) Akodon spp. and 40% (6/15) Oligoryzomys spp. DNA sequencing
of LipL32 gene confirmed nine species as pathogenic Leptospira. This remarkable incidence of leptospiral carriage
within wild genera emphasizes the role of these rodents as carriers of leptospires throughout in this environment.
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