Results 41 to 50 of about 3,205 (152)

Aggregate-reactivation activity of the molecular chaperone ClpB from Ehrlichia chaffeensis. [PDF]

PLoS ONE, 2013
Rickettsiale diseases, including human monocytic ehrlichiosis caused by Ehrlichia chaffeensis, are the second leading cause of the tick-borne infections in the USA and a growing health concern. Little is known about how E.
Ting Zhang, Sabina Kedzierska-Mieszkowska, Huitao Liu, Chuanmin Cheng, Roman R Ganta, Michal Zolkiewski   +5 more
doaj   +1 more source

Intravascular persistence of Anaplasma platys, Ehrlichia chaffeensis, and Ehrlichia ewingii DNA in the blood of a dog and two family members

Parasites & Vectors, 2014
Background Anaplasmosis, caused by Anaplasma phagocytophilum and Anaplasma platys, and ehrlichiosis, caused by Ehrlichia chaffeensis, Ehrlichia ewingii, the "Panola Mountain Ehrlichia" and Ehrlichia muris- like pathogens have been identified as emerging ...
Edward B Breitschwerdt, Barbara C Hegarty, Barbara A Qurollo, Tais B Saito, Ricardo G Maggi, Lucas S Blanton, Donald H Bouyer   +6 more
doaj   +1 more source

Mutations in Ehrlichia chaffeensis Causing Polar Effects in Gene Expression and Differential Host Specificities. [PDF]

PLoS ONE, 2015
Ehrlichia chaffeensis, a tick-borne rickettsial, is responsible for human monocytic ehrlichiosis. In this study, we assessed E. chaffeensis insertion mutations impacting the transcription of genes near the insertion sites.
Chuanmin Cheng, Arathy D S Nair, Deborah C Jaworski, Roman R Ganta   +3 more
doaj   +1 more source

Natural Infection of Domestic Goats withEhrlichia chaffeensis [PDF]

Journal of Clinical Microbiology, 2000
ABSTRACTThirty-eight domestic goats from an area ofEhrlichia chaffeensisendemicity were tested for antibodies reactive toE. chaffeensisand forE. chaffeensis-specific 16S rRNA gene fragments by an indirect fluorescent antibody test and a nested PCR assay, respectively. Twenty-eight of 38 (73.7%) goats had antibodies reactive toE.
V G, Dugan, S E, Little, D E, Stallknecht, A D, Beall   +3 more
openaire   +2 more sources

Mathematical model of Ehrlichia chaffeensis transmission dynamics in dogs

Journal of Biological Dynamics, 2023
Ehrlichia chaffeensis is a tick-borne disease transmitted by ticks to dogs. Few studies have mathematical modelled such tick-borne disease in dogs, and none have developed models that incorporate different ticks' developmental stages (discrete variable) as well as the duration of infection (continuous variable).
Agusto, Folashade, Seydi, Ousmane, Djidjou-Demasse, Ramsès   +2 more
openaire   +4 more sources

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 chaffeensis Tandem Repeat Effector Targets Differentially Influence Infection [PDF]

Frontiers in Cellular and Infection Microbiology, 2017
Ehrlichia chaffeensis infects mononuclear phagocytes and survives intracellularly by exploiting host cell processes to evade host defenses. The mechanisms involved are not fully defined, but appear to rely largely on a subset of tandem repeat proteins (TRP) effectors. E.
Tian Luo, Paige S. Dunphy, Jere W. McBride, Jere W. McBride, Jere W. McBride, Jere W. McBride, Jere W. McBride   +6 more
openaire   +3 more sources

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

Medical and Veterinary Entomology, Volume 40, Issue 1, Page 91-100, March 2026.
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.
Alpha Kargbo, Aamir M. Osman, Edrisa Jawo, Lamin K. M. Fatty, Flavia C. M. Collere, Marcos R. André, Ahmed A. Hassan‐Kadle, Thállitha S. W. J. Vieira, Rosangela Z. Machado, Rafael F. C. Vieira   +9 more
wiley   +1 more source

Ehrlichia chaffeensis and Its Invasin EtpE Block Reactive Oxygen Species Generation by Macrophages in a DNase X-Dependent Manner

mBio, 2017
The obligatory intracellular pathogen Ehrlichia chaffeensis lacks most genes that confer resistance to oxidative stress but can block reactive oxygen species (ROS) generation by host monocytes-macrophages.
Omid Teymournejad, Mingqun Lin, Yasuko Rikihisa   +2 more
doaj   +1 more source

Optic Chiasm and Bilateral Optic Nerve Oligodendroglioma in A 29‐Month‐Old German Shepherd

Veterinary Ophthalmology, Volume 29, Issue 2, March 2026.
ABSTRACT Objective To report the first documented case of high‐grade optic chiasm and nerve oligodendroglioma in a young dog and contribute to the comparative study of gliomas in humans and canines. Animal Studied A 29‐month‐old male intact German Shepherd.
Vienna M. Lunking, Rajdeep Multani, Devin Fussell, LaTisha N. Knight, Erin Keenihan, Danielle M. Meritet, Abigail R. Armwood, Annie Oh   +7 more
wiley   +1 more source