Ehrlichia chaffeensis


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Ehr·lich·i·a chaf·fee'n·sis

The bacterial species associated with human ehrlichiosis; infects human monocytes and is carried by the tick vector, Amblyomma americanum, the Lone Star tick.

Ehr·lich·i·a chaf·fe·en·sis

(ār-lik'ē-ă chaf'ē-en'sis)
A bacterial species associated with human monocytic ehrlichiosis; carried by a tick vector, Amblyomma americanum, the Lone Star tick, and transmitted by various hard-bodied ticks.

Ehrlichia chaffeensis

An obligate intracellular gram-negative bacterium that causes human monocytic ehrlichiosis in humans.
See also: Ehrlichia
References in periodicals archive ?
La Ehrlichia canis y Ehrlichia chaffeensis son responsables de la Ehrlichiosis monocitica canina y Ehrlichiosis monocitica humana respectivamente; Sin embargo, ambas bacterias han sido reportadas tanto en perros como en humanos; infectando principalmente celulas sanguineas, en particular celulas mononucleares multiplicandose dentro de vacuolas intracitoplasmaticas, hasta formar las inclusiones basofilas caracteristicas llamadas morulas (Gutierrez et al., 2009).
Increasing incidence of ehrlichiosis in the United States: A summary of national surveillance of Ehrlichia chaffeensis and Ehrlichia ewingii infections in the United States, 2008-2012.
Hancock, "Sequential evaluation of dogs naturally infected with Ehrlichia canis, Ehrlichia chaffeensis, Ehrlichia equi, Ehrlichia ewingii, or Bartonella vinsonii" Journal of Clinical Microbiology, vol.
Persistent Ehrlichia chaffeensis infection in white-tailed deer.
Post-release from the hospital, results came back seropositive (private laboratory, Tampa) for Ehrlichia chaffeensis, the causative agent of human monocytic ehrlichiosis (HME).
Andrea Varela-Stokes concentrated mainly on Ehrlichia chaffeensis, the agent of human monocytic ehrlichiosis (HME), and Borrelia lonestari (Figure 5), putative agent of "southern tick-associated rash illness" (STARI) in her PhD and post-doctoral work.
Further evaluation revealed positive serology for Ehrlichia chaffeensis with an initial titer of 64 during the first week's test, 128 for the second week, and a maximum of 1024 by the third week.
Ehrlichia chaffeensis is an obligatory intracellular, tick-transmitted bacterium that is maintained in nature in a cycle involving at least one and perhaps several vertebrate reservoir hosts.
Evaluation of Antibiotic Susceptibilities of Ehrlichia canis, Ehrlichia chaffeensis, and Anaplasma phagocytophilum by Real-Time PCR.
Human Monocytic Ehrlichiosis (HME) is a vector-borne disease transmitted through the bite of Ixodid ticks carrying the obligate intraleucocytic bacterium Ehrlichia chaffeensis. E.
Tetracycline, too, is effective against Borrelia burgdorferi and Ehrlichia chaffeensis, the causes of Rocky Mountain spotted fever and ehrlichiosis, respectively.