Results 51 to 60 of about 8,171 (197)

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

open access: yesPLoS Negl Trop Dis, 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 ...
Polo G   +3 more
europepmc   +5 more sources

The anal pore route is efficient to infect Amblyomma spp. ticks with Rickettsia rickettsii and allows the assessment of the role played by infection control targets

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
Adult Amblyomma sculptum and Amblyomma aureolatum ticks are partially refractory to Rickettsia rickettsii when fed on infected hosts, hindering the functional characterization of potentially protective targets in the bacterial acquisition. In the current
Marcelly Bastos Nassar   +5 more
doaj   +1 more source

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

open access: yesAnimals, 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   +9 more
doaj   +1 more source

CARRAPATOS EM animais silvestres DO BIOMA CERRADO triados pelo Cetas, IBAMA-goIÁS

open access: yesCiência Animal Brasileira, 2016
O Bioma Cerrado possui por volta de 320 mil espécies de animais e ocupa aproximadamente 25% do território brasileiro. Por sua grande diversidade de espécies, excita o tráfico ilegal de animais silvestres.
Thiago Souza Azeredo Bastos   +4 more
doaj   +1 more source

EAACI Molecular Allergology User's Guide 2.0

open access: yesPediatric Allergy and Immunology, Volume 34, Issue S28, March 2023., 2023
Abstract Since the discovery of immunoglobulin E (IgE) as a mediator of allergic diseases in 1967, our knowledge about the immunological mechanisms of IgE‐mediated allergies has remarkably increased. In addition to understanding the immune response and clinical symptoms, allergy diagnosis and management depend strongly on the precise identification of ...
Stephanie Dramburg   +100 more
wiley   +1 more source

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

open access: yesPathogens, 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   +14 more
doaj   +1 more source

Comparative mitogenomics elucidates the population genetic structure of Amblyomma testudinarium in Japan and a closely related Amblyomma species in Myanmar

open access: yesEvolutionary Applications, Volume 15, Issue 7, Page 1062-1078, July 2022., 2022
Abstract Ticks are the second most important vector capable of transmitting diseases affecting the health of both humans and animals. Amblyomma testudinarium Koch 1844 (Acari: Ixodidae), is a hard tick species having a wide geographic distribution in Asia. In this study, we analyzed the composition of A.
Wessam Mohamed Ahmed Mohamed   +18 more
wiley   +1 more source

Tick salivary gland extract induces alpha‐gal syndrome in alpha‐gal deficient mice

open access: yesImmunity, Inflammation and Disease, Volume 9, Issue 3, Page 984-990, September 2021., 2021
Alpha‐gal syndrome (AGS) is characterized by delayed hypersensitivity to non‐primate mammalian meat in people having specific IgE (sIgE) to the oligosaccharide galactose‐alpha‐1,3‐galactose and has been linked to tick bites from Amblyomma americanum (Aa) in the U.S.
Shailesh K. Choudhary   +10 more
wiley   +1 more source

Sequencing and comparative analysis of the Amblyomma sculptum mitogenome

open access: yesVeterinary Parasitology, 2017
The mitogenome of Amblyomma sculptum was sequenced, providing important information for understanding the evolutionary relationships among species of the A. cajennense complex. The mitochondrial genome has a circular structure with 37 genes, including 13 coding DNA sequences, two ribosomal RNA genes (12S rRNA and 16S rRNA) and 22 tRNA genes ...
Paulo Henrique Costa, de Lima   +7 more
openaire   +2 more sources

Microhabitat determines uneven distribution of Amblyomma parvum but not of Amblyomma sculptum ticks within forest patches in the Brazilian Pantanal [PDF]

open access: yesExperimental and Applied Acarology, 2019
Environmental distribution of the two most abundant ticks in forest areas in the Brazilian Pantanal was evaluated by CO2 traps methodology in the wet season (peak of adult ticks) of 2012 and 2013. Adults of Amblyomma parvum were concentrated inside agglomerates of Bromelia balansae, in the border of forest patches. Adults of Amblyomma sculptum occurred
Vanessa do Nascimento Ramos   +3 more
openaire   +2 more sources

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