Results 1 to 10 of about 19,451 (253)

Comparative Analysis of Genome of Ehrlichia sp. HF, a Model Bacterium to Study Fatal Human Ehrlichiosis

BMC Genomics, 2021
Background The genus Ehrlichia consists of tick-borne obligatory intracellular bacteria that can cause deadly diseases of medical and agricultural importance. Ehrlichia sp. HF, isolated from Ixodes ovatus ticks in Japan [also referred to as I.
Mingqun Lin, Qingming Xiong, Matthew Chung, Sean C. Daugherty, Sushma Nagaraj, Naomi Sengamalay, Sandra Ott, Al Godinez, Luke J. Tallon, Lisa Sadzewicz, Claire Fraser, Julie C. Dunning Hotopp, Yasuko Rikihisa   +12 more
doaj   +2 more sources

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   +2 more sources

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
M. Younan, Daniel O. Ouso, B. Bodha, Edward K. Keitany, H. Wesonga, R. Sitawa, Joshua Kimutai, W. Kuria, W. Sake, N. Svitek, T. Landmann, D. D. Wako, J. Villinger   +12 more
semanticscholar   +4 more sources

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

Scientific 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, Eri Onoda, Hitoshi Tai, Hiromi Fujita, Shigetoshi Sakabe, Kentaro Azuma, Shigehiro Akachi, Saori Oishi, Fuyuki Abe, Shuji Ando, Norio Ohashi   +10 more
doaj   +2 more sources

RipE expression correlates with high ATP levels in Ehrlichia, which confers resistance during the extracellular stage to facilitate a new cycle of infection [PDF]

Frontiers in Cellular and Infection Microbiology
Ehrlichiosis is a potentially life-threatening disease caused by infection with the obligatory intracellular bacteria Ehrlichia species. Ehrlichia japonica infection of mice provides an animal model of ehrlichiosis as it recapitulates full-spectrum and ...
Rory C. Chien, Mingqun Lin, Nan Duan, Stephen Denton, Jeffrey Kawahara, Yasuko Rikihisa   +5 more
doaj   +2 more sources

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

BMC 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, Gabriel Oluga Aboge, Hellen Wambui Kariuki, Esther Gathoni Kanduma, Daniel Waweru Gakuya, Ndichu Maingi, Charles Matiku Mulei, Alfred Omwando Mainga   +7 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

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   +2 more sources

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

PLoS 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

Prevalence and Sequence Analysis of Vector‐Borne Zoonotic Diseases in Stray Cats in Istanbul [PDF]

Veterinary Medicine and Science
Background Feline vector‐borne diseases are caused by various pathogens transmitted by arthropods. Many of these infections have zoonotic importance, and cats can serve as sentinels for monitoring the health of both humans and pets.
Tuba Yazicioglu, Handan Cetinkaya
doaj   +2 more sources

Ultrastructure of Ehrlichia canis [PDF]

Infection and Immunity, 1973
The ultrastructure of Ehrlichia canis was examined in both pulmonary mononuclear cells and in monocytes cultured from an infected dog. The cytoplasmic inclusions, or morulae, of E. canis consisted of a membrane-lined vacuole-containing elementary bodies which varied in size and number.
Paul K. Hildebrandt, James D. Conroy, Adam E. McKee, Mramba Nyindo, David L. Huxsoll   +4 more
openalex   +3 more sources