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Ticks infesting terrestrial small mammals in a rural settlement in the Amazonas state, Brazil.
Portela, Juliana Machado; Nava, Alessandra Ferreira Dales; Batista, Helder Ribeiro; Martins, Thiago F; Muñoz-Leal, Sebastian; da Silva, Maria Nazareth Ferreira; Dias, Salatiel Ribeiro; Labruna, Marcelo B; Minervino, Antonio Humberto Hamad.
Afiliación
  • Portela JM; Laboratoy of Animal Health, Universidade Federal do Oeste do Pará, Belem, PA, Brazil.
  • Nava AFD; Instituto Leonidas e Maria Deane - Laboratório de Ecologia de Doenças Infecciosas Transmissíveis na Amazônia - Núcleo PReV, Belem, Brazil.
  • Batista HR; Laboratoy of Animal Health, Universidade Federal do Oeste do Pará, Belem, PA, Brazil.
  • Martins TF; Faculty of Veterinary Medicine and Animal Science, FMVZ, University of São Paulo, São Paulo, Brazil.
  • Muñoz-Leal S; Faculty of Veterinary Medicine and Animal Science, FMVZ, University of São Paulo, São Paulo, Brazil.
  • da Silva MNF; Coleção de Mamíferos do Instituto Nacional de Pesquisas da Amazônia (INPA), Manaus, AM, Brazil.
  • Dias SR; Laboratoy of Animal Health, Universidade Federal do Oeste do Pará, Belem, PA, Brazil.
  • Labruna MB; Faculty of Veterinary Medicine and Animal Science, FMVZ, University of São Paulo, São Paulo, Brazil.
  • Minervino AHH; Laboratoy of Animal Health, Universidade Federal do Oeste do Pará, Belem, PA, Brazil. ah.minervino@gmail.com.
Exp Appl Acarol ; 2024 Aug 01.
Article en En | MEDLINE | ID: mdl-39088133
ABSTRACT
There is limited knowledge about tick diversity in the Amazon region. Here, we survey small terrestrial mammals for tick infestation at the Rio Pardo settlement, Amazonas State, Brazil. Sampling included rainy and dry seasons and four ecotones (primary forest, forest in regeneration, field crops and households). Each animal was inspected for ticks, which, if present, were placed in 70% alcohol and identified. Parasitological indexes were calculated and the presence/absence of ticks on hosts was tested for possible associations with independent variables (ecotone, host sex, host order, host family, host age and season). A total of 208 small mammals were captured, 47 individuals (10 species) in the primary forest, 124 (15 species) in the forest in regeneration, 11 (7 species) in the field crops, and 26 (4 species) in the households. A total of 14 small mammals were infested by ticks (overall prevalence 6.7%; 95% CI 3.72 - 11.04%), which consisted of 51 specimens that were identified into four species, as follows Amblyomma humerale (32 nymphs); Ixodes luciae (6 females); Amblyomma coelebs (1 nymph); and Ornithodoros mimon (1 larva). In addition, 11 larvae were retained as Amblyomma spp. Only host order showed association (P = 0.002) with tick infestation, with marsupials 5.5 times more infested than rodents. Our record of O. mimon on D. marsupialis is the first on this host species, and the first record of a Argasidae tick in the Brazilian state of Amazonas. To the best of our knowledge, this is the first study that actively screened free-living terrestrial small mammals and provided data on prevalence, mean intensity and mean abundance of tick infestations in the Brazilian Amazonas state.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: America do sul / Brasil Idioma: En Revista: Exp Appl Acarol Asunto de la revista: BIOLOGIA / PARASITOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos
Texto completo
Añadir a Mi BVS
Imprimir
XML
PubMed Links
Buscar en Google

Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE País/Región como asunto: America do sul / Brasil Idioma: En Revista: Exp Appl Acarol Asunto de la revista: BIOLOGIA / PARASITOLOGIA Año: 2024 Tipo del documento: Article País de afiliación: Brasil Pais de publicación: Países Bajos