Results 111 to 120 of about 8,171 (197)

Dichotomous key to larvae of the genus Amblyomma (Parasitiformes: Ixodidae) in Brazil, with morphological description and redescription of the larval stage of 30 Amblyomma species

Ticks and Tick-Borne Diseases
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, Adriano Pinter, Vera L.F. de Camargo-Neves, Agustín Estrada-Peña, Pablo H. Nunes, Fábio Barbieri, Kátia M. Famadas, Marcelo B. Labruna   +7 more
doaj   +1 more source

Complementary data on four methods for sampling free-living ticks in the Brazilian Pantanal

Revista Brasileira de Parasitologia Veterinária, 2014
In this study, four methods for sampling free-living ticks that are used in ecological and human tick-bite risk studies were evaluated. Cloth dragging, carbon dioxide traps and visual searches and inspection of plant litter on the ground were used in ...
Vanessa do Nascimento Ramos, Carolina Fonseca Osava, Ubiratan Piovezan, Matias Pablo Juan Szabó   +3 more
doaj   +3 more sources

Temporal and Spatial Analysis of Vector-Tick Borne Spotted Fever in the State of São Paulo

Zoonotic Diseases
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, Michellin Pereira de Albuquerque, Fabricio dos Santos Menezes, Sílvia von Tiesenhausen de Sousa-Carmo, Adriano Pinter   +4 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]

Revista Brasileira de Parasitologia Veterinária
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, Walter Flausino, Thiago Fernandes Martins, Igor Silva Silito, Hermes Ribeiro Luz, Maria Carolina de Azevedo Serpa, Marcelo Bahia Labruna, João Luiz Horacio Faccini   +7 more
doaj   +1 more source

New records of amblyomma sculptum (acari: ixodidae) in the Northeast of Argentina

, 2018
Introducción: Amblyomma sculptum Berlese, 1888 es una garrapata que parasita tanto mamíferos silvestres, como domésticos e incluso al hombre. Es considerada el principal vector de Rickettsia rickettsii, agente causal de fiebre mancha en Sudamérica, en ...
Tarragona, Evelina L., Benítez Ibalo, Alicia Paola, Debárbora, Valeria Natalia, Martínez, Emilia Irina   +3 more
core  

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

Ticks 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 found exclusively in areas of the Amazon biome, and A.
openaire   +2 more sources

Morphodifferentiation of Gené’s organ in engorged Amblyomma sculptum Berlese, 1888 female ticks (Acari: Ixodidae)

Ticks and Tick-borne Diseases, 2018
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, Magna Aparecida, Maltauro Soares, Maria Anete, Lallo, Darci Moraes, Barros-Battesti, Solange, de Lima-Netto, Diva Denelle, Spadacci-Morena   +5 more
openaire   +2 more sources

Antiproliferative and antiangiogenic effect of Amblyomma sculptum (Acari: Ixodidae) crude saliva in endothelial cells in vitro

Biomedicine & Pharmacotherapy, 2019
Neovascularization, a process that includes vasculogenesis and angiogenesis, may be a physiological or pathologic event, but in any cases the phenomenon is related to the formation of vascular net and sprouting of endothelial cells from preexisting blood vessel.
Paulo Luiz de Sá Junior, Diana Aparecida Dias Câmara, Juliana Mozer Sciani, Allan Saj Porcacchia, Pâmela Maria Moreira Fonseca, Ronaldo Zucatelli Mendonça, Selene Elifio-Esposito, Simone Michaela Simons   +7 more
openaire   +2 more sources

Genetic profile and susceptibility of different Amblyomma sculptum tick populations to infection by Rickettsia rickettsia pathogen

, 2016
Recentemente, o táxon Amblyomma cajennense sofreu uma divisão sistemática, através de estudos morfológicos, moleculares e biológicos. No Brasil, Amblyomma sculptum (pertencente ao complexo Amblyomma cajennense) tem sua importância em saúde pública ...
Gerardi, Monize
core   +1 more source

Effect of environmental variables on the abundance of Amblyomma ticks, potential vectors of Rickettsia parkeri in central Brazil.

PLoS ONE
Amblyomma ticks are vectors of both Rickettsia rickettsii and R. parkeri in the Americas, where capybaras (Hydrochoerus hydrochaeris) are the main hosts in urban areas, thus contributing to the transmission of spotted fever.
Isadora R C Gomes, Rodrigo Gurgel-Gonçalves, Gilberto S Gazeta, Ana B P Borsoi, Karla Bitencourth, Letícia F Leite, Nathália G S S Coelho, Ricardo Dislich, Helga C Wiederhecker, Eduardo G Santos, Melina Guimarães   +10 more
doaj   +1 more source