human monocytic ehrlichiosis


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human monocytic ehrlichiosis

Infectious disease An infection by Ehrlichia chaffeensis Vector Lone Star tick–Amblyomma americanum, possibly also Dermacentor variabilis Reservoir Deer, possibly dogs or others Regions US, Europe, Africa Clinical Fever, malaise, headache, myalgia, rigors, sweating, anorexia, arthralgia, N&V, pharyngitis, rash, cough, diarrhea; with progression of HME, fever, headache, myalgia, anorexia, and arthralgia become more intense Lab CSF pleocytosis, E chaffeensis inclusions in monocytes, spleen and other tissues, BM hyperplasia–58%, hypoplasia–17% Diagnosis Romanovsky stains of circulating monocytes, EM, indirect immunofluorescence, PCR Complications Meningitis, interstitial pneumonia, GI and pulmonary hemorrhage, disseminated hemorrhage. Cf Human granulocytic ehrlichiosis.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

hu·man mon·o·cyt·ic ehr·lich·i·o·sis

(HME) (hyū'măn mon'ō-sit'ik er-lik'ē-ō'sis)
A febrile disease caused by Ehrlichia chaffeensis and transmitted by the Lone Star tick (Amblyomma americanum); similar to human granulocytic ehrlichiosis, except that inclusions are found in monocytes.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
References in periodicals archive ?
Outcome of diagnostic tests using samples from patients with culture-proven human monocytic ehrlichiosis: implications for surveillance.
Serologic diagnosis of human monocytic ehrlichiosis by immunoblot analysis.
* Ehrlichiosis in humans consists of the clinically similar diseases human monocytic ehrlichiosis (HME) (Figure 4-20), which affects monocytic cells and is caused by Ehr.
Myocarditis associated with human monocytic ehrlichiosis is distinctly uncommon.
Among these emerging pathogens are several species of Ehrlichia, small, gram-negative bacteria transmitted by arthropod vectors that can cause human disease, such as human monocytic ehrlichiosis (HME).
In 1992, a survey for antibodies against Ehrlichia chaffeensis (the agent of human monocytic ehrlichiosis) in human sera from eight African countries indicated that human ehrlichioses might occur on the continent (4), and subsequently a case (diagnosed by serology only) was reported from Mali (5).
Human monocytic ehrlichiosis (HME) is a newly recognized disease caused by Ehrlichia chaffeensis, a rickettsialike, gram-negative, pleomorphic bacterium (1).
canis in humans (2) and human granulocytic ehrlichiosis as human monocytic ehrlichiosis in areas where the vector was not present (3).
The conclusions meet the criteria published by the American Society for Rickettsiology, in which a confirmed diagnosis of human monocytic ehrlichiosis (HME) is based on a "single serum titer of 256" in a patient with clinically compatible disease (5).
We present the first serologic evidence that the agents of human monocytic ehrlichiosis (HME) and HGE are present in Israel.
The emerging tick-borne zoonoses human monocytic ehrlichiosis (HME) and human granulocytic ehrlichiosis (HGE) are underreported in the United States.
chaffeensis suggests human monocytic ehrlichiosis; however, as antibody testing was not performed with E.

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