Results 81 to 90 of about 567 (157)
We sequenced the entire mt genomes of three species of tick for the first time: Bothriocroton auruginans, B. hydrosauri and H. (Kaiseriana) novaeguineae, and we sequenced the 18S rRNA gene of B. hydrosauri and H. (Kaiseriana) bancrofti. In our phylogenetic trees, Alloceraea was the sister to Archaeocroton sphenodonti, from New Zealand; to the exclusion
Samuel Kelava +9 more
wiley +1 more source
Epidemiology and control of ticks with medical and veterinary importance in South America
An accurate knowledge on ecological aspects of ticks is essential to design and evaluate the control methods and to make epidemiological inferences about tick-borne diseases.
Santiago Nava
doaj
A new genotype phylogenetically close to Ehrlichia canis named as Ehrlichia minasensis was identified infecting cattle and deer in Canada, as well as Rhipicephalus microplus ticks and cattle in Brazil. Although it was detected in R. microplus, little is known about the epidemiology of this ehrlichiosis, especially in other tick species.
Izabelle T S, Carvalho +10 more
openaire +2 more sources
Free-living ticks in a cerrado fragment, state of Mato Grosso do Sul, Brazil
The fatal cases of spotted fever reported in some Brazilian municipalities are generally associated with the presence of ticks and capybaras (Hydrochoerus hydrochaeris). The urban forest fragments where this rodent is present are of great concern.
Jaqueline Matias +8 more
doaj +3 more sources
Ticks of the genus Amblyomma are of great medical and veterinary importance in Brazil, where they regularly parasitize wild and domestic animals and will bite humans that enter rural and forest areas for work and recreation purposes.
Thiago F. Martins +7 more
doaj +1 more source
BackgroundRickettsia bacteria are responsible for diseases in humans and animals around the world, however few details are available regarding its ecology and circulation among wild animals and human populations at high transmission risk in Brazil.
Louise B Kmetiuk +13 more
doaj +1 more source
Ticks (Acari: Ixodidae) and tick-borne agents associated with domestic dogs in an environmental protection area in Brazil, with molecular evidence of Rhipicephalus linnaei (Audouin, 1826) [PDF]
Wild animals and domestic dogs living in human dwellings near forested areas can share ectoparasites, including ticks. In this study, we surveyed ticks associated with dogs which tutors living in the Palmares Environmental Protection Area (EPA Palmares).
Hélio Freitas Santos +7 more
doaj +1 more source
Temporal and Spatial Analysis of Vector-Tick Borne Spotted Fever in the State of São Paulo
Brazilian spotted fever (BSF) is a tick-borne acute febrile disease that can be lethal to humans, caused by the bacterium Rickettsia rickettsii. In the State of São Paulo, transmission occurs mainly through two tick species: Amblyomma sculptum and ...
Daniele Rosa Xavier de Melo +4 more
doaj +1 more source
Recent studies indicated that the taxon Amblyomma cajennense (Fabricius, 1787) is a complex of 6 valid species, of which only two, Amblyomma cajennense sensu stricto (s.s.) and Amblyomma sculptum Berlese, 1888 are present in Brazil; the former species is found exclusively in areas of the Amazon biome, and A.
openaire +2 more sources
The Gené's organ (GO) secretes a waxy substance on eggs that reduces water loss and has antimicrobial properties. The current study evaluated morphological and histochemical aspects of GO in Amblyomma sculptum from the period of post-feeding - when ticks detach from the host - to the stage just before oviposition.
Marcelo Francisco, Dos Santos +5 more
openaire +2 more sources

