Results 1 to 10 of about 201 (106)

Detection of Rickettsia spp. in Animals and Ticks in Midwestern Brazil, Where Human Cases of Rickettsiosis Were Reported [PDF]

Animals, 2023
Brazilian spotted fever (BSF) is the most important tick-borne diseases affecting humans in Brazil. Cases of BSF have recently been reported in the Goiás state, midwestern Brazil.
Lucianne Cardoso Neves, Warley Vieira de Freitas Paula, Luiza Gabriella Ferreira de Paula, Bianca Barbara Fonseca da Silva, Sarah Alves Dias, Brenda Gomes Pereira, Bruno Sérgio Alves Silva, Anaiá da Paixão Sevá, Filipe Dantas-Torres, Marcelo B. Labruna, Felipe da Silva Krawczak   +10 more
doaj   +2 more sources

Rickettsial Infection in Ticks from a National Park in the Cerrado Biome, Midwestern Brazil [PDF]

Pathogens, 2023
This study was carried out from February 2020 to September 2021 in Parque Nacional das Emas (PNE), a national park located in the Cerrado biome, midwestern Brazil, as well as in surrounding rural properties.
Raquel Loren dos Reis Paludo, Warley Vieira de Freitas Paula, Lucianne Cardoso Neves, Luiza Gabriella Ferreira de Paula, Nicolas Jalowitzki de Lima, Bianca Barbara Fonseca da Silva, Brenda Gomes Pereira, Gracielle Teles Pádua, Filipe Dantas-Torres, Marcelo B. Labruna, Thiago Fernandes Martins, Jonas Sponchiado, Lucas Christian de Sousa-Paula, Wellington Hannibal, Felipe da Silva Krawczak   +14 more
doaj   +2 more sources

Capybara density and climatic factors as modulators of Ehrlichia prevalence in questing ticks in the Iberá wetlands, Argentina [PDF]

Scientific Reports, 2023
We evaluated the presence of Ehrlichia spp. in unfed capybara ticks, Amblyomma dubitatum, and explored its association with capybaras density, ticks density and environmental variables. We observed that in the Iberá wetlands ecoregion A.
Ayelen T. Eberhardt, Darío E. Manzoli, Camilo Fernandez, Daniel Zurvera, Lucas D. Monje   +4 more
doaj   +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

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

Detection of an Undescribed Babesia sp. in Capybaras and Amblyomma Ticks in Central-Western Brazil [PDF]

Animals, 2022
Capybaras (Hydrochoerus hydrochaeris) are the largest rodents on Earth. While capybaras are hosts for various tick species, there is limited information regarding the tick-borne pathogens they can carry.
Lucianne Cardoso Neves, Lucas Christian de Sousa-Paula, Sarah Alves Dias, Bianca Barbara Fonseca da Silva, Warley Vieira de Freitas Paula, Luiza Gabriella Ferreira de Paula, Brenda Gomes Pereira, Gracielle Teles Pádua, Ana Carolina Borsanelli, Ennya Rafaella Neves Cardoso, Felipe da Silva Krawczak, Filipe Dantas-Torres   +11 more
doaj   +2 more sources

Diversity and Seasonal Dynamics of Ticks on Ring-Tailed Coatis Nasua nasua (Carnivora: Procyonidae) in Two Urban Areas from Midwestern Brazil [PDF]

Animals, 2022
Understanding the diversity and ecology of ectoparasites in wild animals is essential for surveillance of vector-borne diseases. Coatis (Nasua nasua) easily adapt to anthropized areas, favoring close contact with domestic animals and humans, with the ...
Livia Perles, Thiago Fernandes Martins, Wanessa Teixeira Gomes Barreto, Gabriel Carvalho de Macedo, Heitor Miraglia Herrera, Luis Antônio Mathias, Marcelo Bahia Labruna, Darci Moraes Barros-Battesti, Rosangela Zacarias Machado, Marcos Rogério André   +9 more
doaj   +2 more sources

Ticks and tick-borne bacterial pathogens found on hard ticks (Acari: Ixodidae) on cattle in the Central River region of The Gambia. [PDF]

Med Vet Entomol
First detection of Ehrlichia minasensis, Anaplasma marginale and hemotropic Mycoplasma spp. in cattle in The Gambia. Identification of four tick species, with Hyalomma marginatum being the most common. 15.6% of ticks tested positive for tick‐borne pathogens, including Ehrlichia spp., A. marginale and hemotropic Mycoplasma spp.
Kargbo A, Osman AM, Jawo E, Fatty LKM, Collere FCM, André MR, Hassan-Kadle AA, Vieira TSWJ, Machado RZ, Vieira RFC.   +9 more
europepmc   +2 more sources

Novel Anaplasmataceae agents Candidatus Ehrlichia hydrochoerus and Anaplasma spp. Infecting Capybaras, Brazil [PDF]

Emerging Infectious Diseases, 2022
We amplified Ehrlichia and Anaplasma DNA from Amblyomma dubitatum tick–infested capybaras (Hydrochoerus hydrochaeris) in southern Brazil. Sequencing of 16S rRNA, sodB, and groEL indicated a novel Ehrlichia species, and sequencing of 16S rRNA from 2 ...
Thállitha S.W.J. Vieira, Flávia C.M. Collere, Larissa D.R. Ferrari, Rafael A. Baggio, Rogério R. Lange, Marcos V. Ferrari, Juan C.M. Duque, Gustavo S. Sanches, Nathália A. Pereira, Daniel M. Aguiar, Marcelo B. Labruna, Rafael F.C. Vieira   +11 more
doaj   +2 more sources

Serological exposure of spotted fever group Rickettsia in capybaras (Hydrochoerus hydrochaeris) from urban parks in Campo Grande, Brazilian Midwest [PDF]

Revista da Sociedade Brasileira de Medicina Tropical, 2022
Background: Rickettsia of the spotted fever group (SFG) has been reported in ticks and domestic animals in Campo Grande (CG), Midwest Brazil. Methods: We searched for Rickettsia in the SFG in capybaras and their ticks in an urban park in the CG ...
João Bosco Vilela Campos, Filipe Santos Martins, Gabriel Carvalho de Macedo, Wanessa Teixeira Gomes Barreto, Carina Elisei de Oliveira, Amália Regina Mar Barbieri, Marcelo Bahia Labruna, Luiz Gustavo Rodrigues Oliveira-Santos, Heitor Miraglia Herrera   +8 more
doaj   +2 more sources