Results 31 to 40 of about 8,171 (197)

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

Automated identification of spotted-fever tick vectors using convolutional neural networks. [PDF]

Med Vet Entomol
We evaluate the performance of convolutional neural networks (CNN) AlexNet, ResNet‐50 and MobileNetV2 for the automated identification of tick species capable of transmitting spotted fever. CNNs achieved accuracy rates of ~90% in identifying ticks and showed sensitivities of 59%–100% according to species, sex, position or image resolution.
Gomes IRC, Miranda VL, Leal JFC, Oliveira IP, Silva PJ, Bitencourth K, Rodrigues CM, Siqueira LR, Labruna MB, Gazeta GS, Amorim M, Gurgel-Gonçalves R.   +11 more
europepmc   +2 more sources

Ticks on wild vertebrates necropsied in a veterinary pathology service in central Brazil: species richness and pathogen screening [PDF]

Revista Brasileira de Parasitologia Veterinária
During 2022-2024, fresh carcasses of 35 wild animals from Goiás state and the Federal District, both in central Brazil, were sent to the veterinary pathology service of the University of Brasília.
Igor Silva Silito, Matheus Pasini-Martins, Isabella Pereira Pesenato, Marcelo Bahia Labruna, Márcio Botelho de Castro, Liz de Albuquerque Cerqueira, Thiago Fernandes Martins   +6 more
doaj   +3 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

The Distinct Transcriptional Response of the Midgut of Amblyomma sculptum and Amblyomma aureolatum Ticks to Rickettsia rickettsii Correlates to Their Differences in Susceptibility to Infection. [PDF]

Front Cell Infect Microbiol, 2017
Rickettsia rickettsii is a tick-borne obligate intracellular bacterium that causes Rocky Mountain Spotted Fever (RMSF). In Brazil, two species of ticks in the genus Amblyomma, A. sculptum and A.
Martins LA, Galletti MFBM, Ribeiro JM, Fujita A, Costa FB, Labruna MB, Daffre S, Fogaça AC.   +7 more
europepmc   +5 more sources

Do parapatric populations of the ticks Amblyomma tonelliae Nava, Beati & Labruna, 2014 and Amblyomma sculptum Berlese, 1888 (Acari: Ixodidae) hybridize?

Medical and Veterinary Entomology, 2023
This work aimed to determine if the tick species, Amblyomma sculptum and Amblyomma tonelliae, hybridize along their contact zones in Argentina. Free‐living adults and nymphs of A. sculptum and A.
Evelina L. Tarragona, P. Lado, L. Beati, A. Mangold, A. Guglielmone, S. Nava   +5 more
semanticscholar   +2 more sources

Detection of Ehrlichia sp. in Amblyomma sculptum parasitizing horses from Brazilian Pantanal wetland.

Ticks and Tick-borne Diseases, 2021
Bacteria of the genus Ehrlichia are transmitted by ticks and also are an important cause of infection in wild and domestic mammals. Infection with Ehrlichia spp. has been reported in horses, especially in the USA, Nicaragua and Brazil.
L. S. Muraro, M. Nogueira, A. C. Borges, A. D. O. Souza, T. S. Vieira, D. M. de Aguiar   +5 more
semanticscholar   +3 more sources

Landscape features associated to the occurrence of Amblyomma sculptum ticks: an application of zero inflated regression models

Brazilian Journal of Veterinary Medicine, 2016
. Bernardo-Pedro T., Silveira A.K. & Tassinari W.S. Landscape features associated to the occurrence of Amblyomma sculptum ticks: an application of zero inflated regression models.
Thiago Bernardo Pedro, Andrea Kill Silveira, Wagner de Souza Tassinari   +2 more
doaj   +1 more source

Variation in the hatching rate of larvae of four tick species from laboratory colonies [PDF]

Revista Brasileira de Parasitologia Veterinária
The objective of this study was to evaluate the hatching percentage of tick larvae of Amblyomma sculptum, Dermacentor nitens, Rhipicephalus linnaei, and three strains of Rhipicephalus microplus.
Ygor Henrique da Silva, Marisa Beatriz da Silva Rocha, Ester Oliozi Marré, Manuela Pimentel da Motta, Brena Gava Guimarães, Thais Ribeiro Correia Azevedo, Guilherme Marcondes Klafke, Barbara Rauta de Avelar, Diefrey Ribeiro Campos, Fabio Barbour Scott   +9 more
doaj   +2 more sources

Do Commercial Insect Repellents Provide Protection against the Tick <i>Amblyomma sculptum</i> (Acari: Ixodidae)? [PDF]

Pathogens, 2023
Amblyomma sculptum is a species of public health interest because it is associated with the transmission of the bacteria that causes Brazilian Spotted Fever (BSF).
de Barcelos BR, Coelho NGSS, Santos MMB, Vale FL, Teixeira ALC, Pereira E Souza LM, Zeringóta V, de Oliveira Monteiro CM, Eugenio CUO, Obara MT.   +9 more
europepmc   +2 more sources