Results 11 to 20 of about 567 (157)

Transmission dynamics and control of Rickettsia rickettsii in populations of Hydrochoerus hydrochaeris and Amblyomma sculptum [PDF]

PLoS Neglected Tropical Diseases, 2017
Brazilian Spotted Fever (BSF), caused by the bacterium Rickettsia rickettsii, is the tick-borne disease that generates the largest number of human deaths in the world. In Brazil, the current increase of BSF human cases has been associated with the presence and expansion of capybaras Hydrochoerus hydrochaeris, which act as primary hosts for the tick ...
Gina Polo, CARLOS Augusto Mera Acosta, Fernando Ferreira   +2 more
exaly   +6 more sources

Occurrence of Amblyomma sculptum and Amblyomma ovale ticks (Acari: Ixodidae) in the state of Paraná - Brazil

Acta Scientiarum: Biological Sciences
Amblyomma sculptum and Amblyomma ovale are ticks (Acari: Ixodidae) that commonly bite humans and are associated with Spotted Fever (SF). The objective of this study was to conduct a literature review of articles indexed in the Web of Science ...
Adriane Suzin, Nicole Geraldine de Paula Marques Witt, Otacílio Lopes de Souza da Paz, Larissa Warnavin   +3 more
doaj   +2 more sources

New records for Amblyomma sculptum (Ixodidae) on non-passerine birds in Brazil [PDF]

Revista Brasileira de Parasitologia Veterinária, 2016
The aim of this paper was to provide new records of Amblyomma sculptum on two species of terricolous birds in two areas of the Cerrado (savannah- like) bioma: two specimens of Cariama cristata were captured in the state of Goiás and one specimen ofCrax ...
Hermes Ribeiro Luz, João Luiz Horacio Faccini, Gabriel Alves Landulfo, Sócrates Fraga Costa Neto, Kátia Maria Famadas   +4 more
doaj   +4 more sources

In vitro acaricidal activity of different ectoparasiticide classes against Amblyomma sculptum larvae [PDF]

Revista Brasileira de Parasitologia Veterinária, 2020
Zoonoses are major causes of morbidity and mortality worldwide. Among them, Brazilian Spotted Fever (BSF) is an important one that occurs in some regions of South America and can be transmitted by the “star tick” Amblyomma sculptum.
Debora Azevedo Borges, Yara Peluso Cid, Barbara Rauta de Avelar, Thais Paes Ferreira, Diefrey Ribeiro Campos, Gabriela Carmelinda Martins dos Santos, Melina Cardilo Campos Alves, Fabio Barbour Scott   +7 more
doaj   +5 more sources

Ultrastructural characterization and quantification of hemocytes in engorged female Amblyomma sculptum ticks

Ticks and Tick-Borne Diseases
Amblyomma sculptum (formerly Amblyomma cajennense) ticks have been implicated in the transmission of pathogens that cause diseases in animals and humans.
Andressa Aparecida de Lima Reis, Barbara Rauta de Avelar, Marisa Beatriz da Silva Rocha, Debora Azevedo Borges, Diefrey Ribeiro Campos, Jessica Fiorotti, Patrícia Silva Golo, Fabio Barbour Scott   +7 more
doaj   +3 more sources

Amblyomma sculptum ticks on a giant otter from the Brazilian Pantanal. [PDF]

Rev Bras Parasitol Vet, 2023
Abstract The giant otter (Pteronura brasiliensis) is a semiaquatic carnivore and a top predator in the trophic chain, considered a sentinel of freshwater ecosystems. Ticks are common ectoparasites of worldwide distribution and potential vectors of diseases.
Soresini G, Foerster N, Paiva F, Mourão G, Leuchtenberger C.   +4 more
europepmc   +5 more sources

Diferenciação morfométrica entre larvas de Amblyomma sculptum Berlese, 1888 e Amblyomma dubitatum Neumann, 1899 [PDF]

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2018
RESUMO Os carrapatos estão envolvidos em processos biológicos de uma grande variedade de organismos patogênicos. O gênero Amblyomma é o de maior importância médica, com a espécie Amblyomma sculptum Berlese, 1888 envolvida no ciclo de transmissão da febre
J. Brites-Neto, J. Brasil, G.A.C.G. Takeda, A.C. Guillen, M.B. Labruna, A. Pinter   +5 more
doaj   +3 more sources

Artificial feeding of partially engorged Amblyomma sculptum females through capillaries*

Brazilian Journal of Veterinary Medicine, 2016
. Abel I., Cunha N.C., Rangel C.P., Corrêa F.N. & Fonseca A.H. Artificial feeding of partially engorged Amblyomma sculptum females through capillaries. [Alimentação artificial de fêmeas parcialmente ingurgitadas de Amblyomma sculptum, por meio de tubos ...
Isis Abel, Nathalie Costa da Cunha, Charles Passos Rangel, Fabíola do Nascimento Corrêa, Adivaldo Henrique da Fonseca   +4 more
doaj   +3 more sources

Amblyomma cajennense Sensu Stricto (Fabricius, 1787) and Amblyomma sculptum (Berlese, 1888) Tick Saliva Elicit Immune-Modulatory Activity in Isolated Murine Macrophages With an Insight Into Proteomic Analysis. [PDF]

Parasite Immunol
ABSTRACT Tick saliva is known to cause immunosuppression and help pathogen transmission. Amblyomma sculptum is a public health concern as a vector of Rickettsia rickettsii. Another close‐related species is Amblyomma cajennense sensu stricto (s.s.). The impact of saliva from these species on murine macrophages remains unclear.
Aguirre AAR, Dos Reis VP, Setúbal SDS, Carioca ALPM, Tavares KM, Evaristo GPC, Evaristo JAM, Nogueira FCS, Medeiros JF, Zuliani JP.   +9 more
europepmc   +2 more sources

Amblyomma sculptum Salivary Protease Inhibitors as Potential Anti-Tick Vaccines. [PDF]

Front Immunol, 2020
Amblyomma sculptumis the main tick associated with human bites in Brazil and the main vector ofRickettsia rickettsii, the causative agent of the most severe form of Brazilian spotted fever. Molecules produced in the salivary glands are directly related to feeding success and vector competence.
Costa GCA, Ribeiro ICT, Melo-Junior O, Gontijo NF, Sant'Anna MRV, Pereira MH, Pessoa GCD, Koerich LB, Oliveira F, Valenzuela JG, Giunchetti RC, Fujiwara RT, Bartholomeu DC, Araujo RN.   +13 more
europepmc   +5 more sources