Results 21 to 30 of about 11,013 (205)

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

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   +1 more source

Diversity and phylogeny of the tick-borne bacterial genus Candidatus Allocryptoplasma (Anaplasmataceae)

Parasite, 2023
The family Anaplasmataceae includes tick-borne bacteria of major public and veterinary health interest, as best illustrated by members of the genera Anaplasma and Ehrlichia.
Ouass Sofian, Boulanger Nathalie, Lelouvier Benjamin, Insonere Jean-Louis-Marie, Lacroux Camille, Krief Sabrina, Asalu Edward, Rahola Nil, Duron Olivier   +8 more
doaj   +1 more source

Molecular and serological detection of Ehrlichia spp. in cats on São Luís Island, Maranhão, Brazil Detecção molecular e sorológica de Ehrlichia spp. em gatos da ilha de São Luís, Maranhão, Brasil

Revista Brasileira de Parasitologia Veterinária, 2012
Ehrlichiosis is a tick-borne disease that affects both humans and animals. The few existing reports on ehrlichiosis in Brazilian cats have been based on observation of morulae in leukocytes and, more recently, on molecular detection of Ehrlichia sp.
Maria do Socorro Costa de Oliveira Braga, Marcos Rogério André, Carla Roberta Freschi, Márcia Cristina Alves Teixeira, Rosangela Zacarias Machado   +4 more
doaj   +1 more source

Ehrlichia spp. close to Ehrlichia ruminantium, Ehrlichia canis, and “Candidatus Ehrlichia regneryi” linked to heartwater-like disease in Kenyan camels (Camelus dromedarius)

Tropical Animal Health and Production, 2021
We present findings from an outbreak of a heartwater-like disease in camels that killed at least 2000 adult animals in Kenya in 2016. Clinical signs included excitability, head pressing, aimless wandering, recumbency, and fast breathing followed by death after about 4 days. The observed morbidity in one herd was 40% with an average mortality of 7.5% in
Mario Younan, Daniel O. Ouso, Boku Bodha, Edward K. Keitany, Hezron O. Wesonga, Rinah Sitawa, Joshua Kimutai, Wilson Kuria, Wario Sori Sake, Nicholas Svitek, Tobias Landmann, Diba Dida Wako, Jandouwe Villinger   +12 more
openaire   +4 more sources

Sequential Evaluation of Dogs Naturally Infected withEhrlichia canis,Ehrlichia chaffeensis,Ehrlichia equi,Ehrlichia ewingii, orBartonella vinsonii [PDF]

Journal of Clinical Microbiology, 1998
ABSTRACTHistorically, disease manifestations in dogs seroreactive toEhrlichia canisantigens by indirect immunofluorescent antibody testing have been attributed to infection with eitherE. canisorEhrlichia ewingii. A 1996 study by Dawson and colleagues provided PCR evidence that healthy dogs from southeastern Virginia could be naturally infected ...
Barbara C. Hegarty, Edward B. Breitschwerdt, Susan I. Hancock   +2 more
openaire   +3 more sources

Ehrlichia chaffeensis Uses an Invasin To Suppress Reactive Oxygen Species Generation by Macrophages via CD147-Dependent Inhibition of Vav1 To Block Rac1 Activation

mBio, 2020
The obligatory intracellular pathogen Ehrlichia chaffeensis lacks most factors that could respond to oxidative stress (a host cell defense mechanism).
Omid Teymournejad, Yasuko Rikihisa
doaj   +1 more source

The glycoprotein TRP36 of Ehrlichia sp. UFMG-EV and related cattle pathogen Ehrlichia sp. UFMT-BV evolved from a highly variable clade of E. canis under adaptive diversifying selection

Parasites & Vectors, 2014
Background A new species of Ehrlichia, phylogenetically distant from E. ruminantium, was found in 2010 infecting cattle in Canada. In 2012 and 2013, we reported the in vitro propagation, molecular and ultrastructural characterization of Ehrlichia sp ...
Alejandro Cabezas-Cruz, James J Valdés, José de la Fuente   +2 more
doaj   +1 more source

Prevalence of antibodies to rickettsias and ehrlichias in four border departments of Peru

Revista Peruana de Medicina Experimental y Salud Pública, 2017
To determine the prevalence of antibodies to Rickettsia and Ehrlichia, related to recent and past contact, in the border towns of the departments Loreto, Madre de Dios, Tumbes and Tacna, during the years 2010 and 2011, surveys for serological evaluation ...
Elizabeth Anaya-Ramírez, Rosa Palacios-Salvatierra, Patricia Mosquera, Carlos Álvarez, Carlos Peralta, Rommell Gonzales, Silvia Sakuray   +6 more
doaj   +1 more source

Human ehrlichiosis [PDF]

Vojnosanitetski Pregled, 2006
Background. Human ehrlichiosis is a newly recognized disease. It is a tick-borne disease caused by several bacterial species of the genhus Erlichia. These are small gram-negative pleomorphic cocci, that are obligatory intracellular bacteria.
Đokić Milomir, Ćurčić Petar, Nožić Darko, Lako Branislav, Begović Vesna, Rajić-Dimitrijević Radmila, Hristović Dejan   +6 more
doaj   +1 more source

Molecular detection of Ehrlichia spp. in ticks parasitizing wild lagomorphs from Spain: characterization of a novel Ehrlichia species

Parasites & Vectors, 2022
Background Several species belonging to the genus Ehrlichia are considered pathogenic for animals and humans. Although wildlife are known to play an important role in the epidemiology of these bacteria, information on the role of wild lagomorphs in their
Susana Remesar, Sabrina Castro-Scholten, Patrocinio Morrondo, Pablo Díaz, Débora Jiménez-Martín, Carlos Rouco, Leonor Camacho-Sillero, David Cano-Terriza, Ignacio García-Bocanegra   +8 more
doaj   +1 more source