Results 11 to 20 of about 29,638 (257)

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

open access: yesTropical 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   +12 more
openaire   +4 more sources

Molecular characterization of novel Ehrlichia genotypes in Ixodes auritulus from Uruguay

open access: yesCurrent 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   +7 more
doaj   +2 more sources

Diversity unearthed by the estimated molecular phylogeny and ecologically quantitative characteristics of uncultured Ehrlichia bacteria in Haemaphysalis ticks, Japan

open access: yesScientific Reports, 2021
Ehrlichia species are obligatory intracellular bacteria transmitted by arthropods, and some of these species cause febrile diseases in humans and livestock.
Hongru Su   +10 more
doaj   +2 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

open access: yesmBio, 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   +2 more sources

Molecular prevalence of emerging Anaplasma and Ehrlichia pathogens in apparently healthy dairy cattle in peri-urban Nairobi, Kenya

open access: yesBMC Veterinary Research, 2020
Background Anaplasma and Ehrlichia species are tick-borne pathogens of both veterinary and public health importance. The current status of these pathogens, including emerging species such as Ehrlichia minasensis and Anaplasma platys, infecting cattle in ...
Shepelo Getrude Peter   +7 more
doaj   +2 more sources

The super repertoire of type IV effectors in the pangenome of Ehrlichia spp. provides insights into host-specificity and pathogenesis.

open access: yesPLoS Computational Biology, 2021
The identification of bacterial effectors is essential to understand how obligatory intracellular bacteria such as Ehrlichia spp. manipulate the host cell for survival and replication. Infection of mammals-including humans-by the intracellular pathogenic
Christophe Noroy, Damien F Meyer
doaj   +2 more sources

Canine infection with Dirofilaria immitis, Borrelia burgdorferi, Anaplasma spp., and Ehrlichia spp. in the United States, 2013–2019

open access: yesParasites & Vectors, 2021
Dogs in the US are commonly infected with vector-borne pathogens, including heartworm and tick-borne disease agents. The geographic distribution of both arthropod vectors and the pathogens they transmit continues to expand.
S. Little   +6 more
semanticscholar   +1 more source

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

open access: yesEmerging 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 ...
T. S. Vieira   +11 more
semanticscholar   +1 more source

An intracellular nanobody targeting T4SS effector inhibits Ehrlichia infection

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2021
Significance Disease-relevant targets of infection by obligatory intracellular pathogens are beyond the reach of conventional antibodies. The neutralizing targets of intracellular pathogens in host cells are mostly unknown. The present study attempted to
Wenqing Zhang   +10 more
semanticscholar   +1 more source

Ehrlichia TRP effectors: moonlighting, mimicry and infection

open access: yesPathogens and Disease, 2021
Intracellular bacteria have evolved various strategies to evade host defense mechanisms. Remarkably, the obligately intracellular bacterium, Ehrlichia chaffeensis, hijacks host cell processes of the mononuclear phagocyte to evade host defenses through ...
Caitlan D. Byerly   +2 more
semanticscholar   +1 more source

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