Results 21 to 30 of about 14,555 (222)

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

Understanding the long-lasting associations among humans, neglected dogs, tick-borne diseases, and core blood bacteria-related pathogenic taxa using next-generation sequencing [PDF]

International Journal of One Health
Background and Aim: Dogs are long-lasting companion animals, and ticks are the most common external parasites in dogs. An increase in the population of neglected domestic dogs has increased the risk of contact with ticks, especially in places where tick ...
S. I. Barraza-Guerrero, C. García-De la Peña, C. A. Meza-Herrera, Q. K. Siller-Rodríguez, F. Vaca-Paniagua, C. Díaz-Velásquez, A. De la Cruz-Montoya, L. M. Valenzuela-Núñez   +7 more
doaj   +1 more source

Molecular characterization of novel Ehrlichia genotypes in Ixodes auritulus from Uruguay

Current Research in Parasitology and Vector-Borne Diseases, 2021
Ehrlichia are small intracellular Gram-negative bacteria transmitted by ticks. These microorganisms cause ehrlichiosis, a complex of life-threatening emerging zoonoses and diseases of global veterinary relevance.
María L. Félix, Sebastián Muñoz-Leal, Luis A. Carvalho, Diego Queirolo, Susana Remesar Alonso, Santiago Nava, María T. Armúa-Fernández, José M. Venzal   +7 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

Detección de casos positivos a Ehrlichia spp., Anaplasma platys y Leishmania spp., en perros, identificados en la División Laboratorio de Biotecnología de la Facultad de Ciencias Veterinarias, Universidad Nacional de Asunción

Revista Investigaciones y Estudios de la UNA
La presente investigación tuvo como objetivo detectar casos positivos de 3 especies de hemopatógenos, a partir de los registros de 300 muestras de perros, sin distinción de raza, sexo y edad procedentes del área metropolitana de Asunción, empleando la ...
Ingrid Paloma Florentín Ibarra, Alba María Araujo Oviedo, Guillermo Giménez Bareiro, María de Lourdes Quiñónez Narváez, María Inés Rodríguez Acosta, Olga Lorena Núñez Yegros   +5 more
doaj   +1 more source

Transmission electron microscopy reveals distinct macrophage- and tick cell-specific morphological stages of Ehrlichia chaffeensis

, 2012
Background: Ehrlichia chaffeensis is an emerging tick-borne rickettsial pathogen responsible for human monocytic ehrlichiosis. Despite the induction of an active host immune response, the pathogen has evolved to persist in its vertebrate and tick hosts ...
Lloyd H Willard, Roman R Ganta, Dedonder, Sarah E., Cheng, Chuanmin, Sarah E Dedonder, Ganta, Roman R., Daniel L Boyle, Chuanmin Cheng, Boyle, Daniel L., Willard, Lloyd H.   +9 more
core   +1 more source

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

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 ...
E B, Breitschwerdt, B C, Hegarty, S I, Hancock   +2 more
openaire   +2 more sources

Aggregate-reactivation activity of the molecular chaperone ClpB from Ehrlichia chaffeensis

, 2013
Citation: Zhang T, Kedzierska-Mieszkowska S, Liu H, Cheng C, Ganta RR, Zolkiewski M (2013) Aggregate-Reactivation Activity of the Molecular Chaperone ClpB from Ehrlichia chaffeensis. PLoS ONE 8(5): e62454.
Roman R Ganta, Liu Huitao, Zhang, Ting, Ganta Roman R., Cheng, Chuanmin, Michal Zolkiewski, Roman R. Ganta (282367), Zolkiewski, Michal, Michal Zolkiewski (122255), Zhang Ting, Huitao Liu, Ganta, Roman R., Zolkiewski Michal, Liu, Huitao, Ting Zhang, Ting Zhang (102583), Kedzierska-Mieszkowska Sabina, Cheng Chuanmin, Kedzierska-Mieszkowska, Sabina, Chuanmin Cheng, Sabina Kedzierska-Mieszkowska, Chuanmin Cheng (282362), Sabina Kedzierska-Mieszkowska (410764), Huitao Liu (332688)   +23 more
core   +1 more source

Respuesta inmune a ehrlichia canis

, 2021
El objetivo del presente artículo fue recopilar la información actualizada de los factores que rodean el mecanismo patológico y la respuesta inmunitaria de los caninos ante infecciones originadas por Ehrlichia canis.
Roa Martinez, Valentina, Garcia Gouffray, Kimberly   +1 more
core