12 research outputs found
Seroepidemiological aspects ofLeishmania spp. in dogs in the Itaguai micro-region, Rio de Janeiro, Brazil
PARTICIPATION OF TICKS IN THE INFECTIOUS CYCLE OF CANINE VISCERAL LEISHMANIASIS, IN TERESINA, PIAUĂŤ, BRAZIL
Wild birds as hosts of Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae)
We evaluated the prevalence, mean intensity and relative density of ticks in 467 wild birds of 67 species (12 families) from forest and cerrado habitats at two protected areas of Minas Gerais, between March and September 1997. Ticks collected (n=177) were identified as larvae and nymphs of Amblyomma cajennense and four other species of Amblyomma. We report for the first time 28 bird species as hosts of the immature stages of A. cajennense, demonstrating the lack of host specificity of the larvae and nymphs. A. cajennense had 15% prevalence on birds, with a mean infestation intensity of 0.37 ticks per host sampled, and 2.5 ticks per infested bird. Prevalence varied in relation to host species, diet and between birds from forests at two successional stages. There were no differences in relation to host forest dependence, participation in mixed flocks of birds, and nest type constructed. A. cajennense is a species of medical and veterinary importance, occurring on domestic animals but is known little of its occurrence on wildlife
Histopathology of Rhipicephalus sanguineus (Acari: Ixodidae) ticks fed on resistant hosts
Rhipicephalus sanguineus (Acari: Ixodidae), the brown dog tick, parasitizing humans in Brazil Rhipicephalus sanguineus (Acari: Ixodidae), o carrapato vermelho do cĂŁo, parasitando humanos no Brasil
The objective of this paper is to describe four cases of human parasitism by Rhipicephalus sanguineus (Latrielle) in Brazil. During an investigation regarding the species of ectoparasites of domestic dogs from the metropolitan region of Recife, Pernambuco state, four dog owners were found to be parasitized by ticks. The ticks were collected from these individuals and their dogs. All the ticks were identified as Rhipicephalus sanguineus . These are, to our knowledge, the first four cases of human parasitism by this tick species in Brazil. The possible implications of this finding are discussed here.<br>O objetivo deste artigo Ă© descrever quatro casos de parasitismo humano por Rhipicephalus sanguineus (Latrielle) no Brasil. Durante uma investigação sobre as espĂ©cies de ectoparasitas de cĂŁes domĂ©sticos provenientes da RegiĂŁo Metropolitana de Recife, Pernambuco, quatro proprietários de cĂŁes foram encontrados parasitados por carrapatos. Foram coletados carrapatos dos indivĂduos e de seus cĂŁes. Todos os carrapatos foram identificados como Rhipicephalus sanguineus, sendo, portanto, descritos os primeiros quatro casos de parasitismo humano por esta espĂ©cie de carrapato, no Brasil. Neste trabalho, sĂŁo discutidas as possĂveis implicações epidemiolĂłgicas deste achado