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Ehrlichiosis humana: Ehrlichia trombocítica en sangre periférica.

Keywords: ehrlichia, ehrlichiosis trombocítica humana, plaquetas.

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ehrlichia is a small obligatory intracellular and gram-negative bacteria that grows within a cytoplastic vacuoles in animals and human blood cells. ehrlichia multiplies by binary fision originating a microcolonies or aggregates named "morulae", visible in blood smear with optic microscope. transmitted by ticks, cause an illness named ehrlichiosis. by 1987, monocytic ehrlichia was described in usa and granulocytotropic ehrlichia by 1994 and 1999. in venezuela, an ehrlichia agent with trombocytotropic characteristic was reported first by 1994 in human blood smear. it is reported the data of a group of subjects that for different reasons asked for the exam. 182 blood smears (peripheral and buffy coat) stained with wright were studied. intraplatelet ehrlichia morulae were identified in 68 of 182 studied subjects (37,36%).


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