Results 21 to 30 of about 8,182 (169)

Pesquisa de Rickettsia spp em carrapatos Amblyomma cajennense e Amblyomma dubitatum no Estado de São Paulo Survey of Rickettsia spp in the ticks Amblyomma cajennense and Amblyomma dubitatum in the State of São Paulo

open access: yesRevista da Sociedade Brasileira de Medicina Tropical, 2009
Foi pesquisada a presença de riquétsias em 3.545 carrapatos Amblyomma cajennense e 2.666 Amblyomma dubitatum. Através do teste de hemolinfa, reação em cadeia pela polimerase e isolamento de rickettsia em cultivo celular, todos os Amblyomma cajennense ...
Richard Campos Pacheco   +10 more
doaj   +2 more sources

Rickettsia infection in Amblyomma tonelliae, a tick species from the Amblyomma cajennense complex.

open access: yesTicks and Tick-borne Diseases, 2015
The present study was performed to evaluate the Rickettsia infection in Amblyomma tonelliae ticks from Argentina. All ticks were subjected to DNA extraction and tested by a battery of PCRs to amplify fragments of four rickettsial genes, 23S-5S, gltA ...
Evelina L. Tarragona   +5 more
semanticscholar   +4 more sources

Rickettsial infection in Amblyomma cajennense ticks and capybaras (Hydrochoerus hydrochaeris) in a Brazilian spotted fever-endemic area. [PDF]

open access: yesParasit Vectors, 2014
BackgroundBrazilian spotted fever (BSF), caused by the bacterium Rickettsia rickettsii, is the deadliest spotted fever of the world. In most of the BSF-endemic areas, capybaras (Hydrochoerus hydrochaeris) are the principal host for the tick Amblyomma ...
Krawczak FS   +5 more
europepmc   +2 more sources

Ambush behavior of the tick Amblyomma sculptum (Amblyomma cajennense complex) (Acari: Ixodidae) in the Brazilian Pantanal.

open access: yesTicks and Tick-borne Diseases, 2017
We herein describe the ambush behavior of Amblyomma sculptum (Berlese 1888), a widespread and epidemiologically important tick in Brazil. Along two years of sampling by visual search in the Brazilian Pantanal, A. sculptum ticks were observed on the vegetation and in the leaf litter. Most of the ticks were observed between 10 and 50cm above ground level
V. N. Ramos   +3 more
semanticscholar   +3 more sources

First record of Rickettsia bellii in Amblyomma varium and Amblyomma goeldii from the Eastern Amazon [PDF]

open access: yesRevista Brasileira de Parasitologia Veterinária
This study investigated the presence of Rickettsia spp., Ehrlichia spp., Anaplasma spp., and Borrelia spp. DNA in questing ticks collected from a forest fragment under constant anthropogenic pressure in the state of Pará, Brazil. The fragment was divided
Izabela Mesquita Araújo   +7 more
doaj   +2 more sources

Amblyomma cajennense (Fabricius, 1787) (Acari: Ixodidae), the Cayenne tick: phylogeography and evidence for allopatric speciation. [PDF]

open access: yesBMC Evol Biol, 2013
Amblyomma cajennense F. is one of the best known and studied ticks in the New World because of its very wide distribution, its economical importance as pest of domestic ungulates, and its association with a variety of animal and human pathogens.
Beati L   +10 more
europepmc   +2 more sources

Meteorological indicators for Amblyomma cajennense and population dynamics in the Tamaulipan Biotic Province in Texas [PDF]

open access: yesJournal of Vector Ecology, 2011
We studied the population dynamics of free-living ticks in the Tamaulipan Biotic Province in south Texas from March, 2005 to November, 2008. We collected 70,873 ticks using carbon dioxide traps. Amblyomma cajennense represented 93.6% of the ticks identified. A.
David Beck
exaly   +3 more sources

Comparative survival of the engorged stages of Amblyomma cajennense sensu stricto and Amblyomma sculptum under different laboratory conditions.

open access: yesTicks and Tick-borne Diseases, 2018
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
M. Labruna
semanticscholar   +3 more sources

Bats used as hosts by Amblyomma sculptum (Acari: Ixodidae) in Northeastern Brazil and its implications on tick-borne diseases [PDF]

open access: yesZoologia (Curitiba), 2020
Amblyomma Koch, 1844 is distributed worldwide, with ca. 130 species currently recognized. These ticks are vectors of pathogens to animals and humans, including the causative agent of the New World Rocky Mountain spotted fever ...
Roberto Leonan M. Novaes   +4 more
doaj   +3 more sources

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