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1.
Invest. clín ; 40(3): 165-77, sept. 1999. ilus, graf
Article in Spanish | LILACS | ID: lil-261516

ABSTRACT

El presente estudio constituye el primer reporte en Venezuela de las características ultraestructurales de Ehrlichia sp en células mononucleares de sangre periférica en un perro infectado experimentalmente, utilizándose para ello microscopía electrónica de transmisión. El animal desarrolló manifestaciones clínicas características de la infección y al realizar los extendidos sanguíneos coloreados con Giemsa modificado, se observaron al microscopio de luz las inclusiones intracitoplasmáticas características en células mononucleares. Al microscopio electrónico se evidenciaron microorganismo extremadamente pleomórficos que se corresponden con los cuerpos elementales dentro de vacuolas citoplasmáticas, rodeados por una doble membrana, cada uno constituido por gránulos electrodensos, características ultraestructurales que identifican al género Ehrlichia


Subject(s)
Animals , Dogs , Dogs , Ehrlichiosis , Ehrlichiosis/complications , Ehrlichiosis/diagnosis , Ehrlichiosis/immunology , Ehrlichiosis/mortality , Ehrlichiosis/parasitology , Ehrlichiosis/prevention & control
2.
Braz. j. infect. dis ; 1(1): 17-26, Mar. 1997. tab, ilus
Article in English | LILACS | ID: lil-245581

ABSTRACT

In recent years, several microbial agents have been identified that result in significant morbidity and mortality. The newly recongnized tick borne infections, babesiosis and ehrlichiosis, may be transmitted by the same tick that transmits Borrelia burgdorferi and simultaneous infections may occur. Babesia are intraerythrocytic protozoa that may cause severe hemolytic anemia, whereas Ehrlichia, depending on the species, may infect either monocytes or granulocytes, with associated leukopenia, thrombocytopenia and anemia. Improved laboratory surveillance is urgently needed to assess the prevalence of these worldwide pathogens in order to institute appropriate infection control efforts.


Subject(s)
Animals , Humans , Babesia/classification , Babesiosis/complications , Babesiosis/epidemiology , Babesiosis/prevention & control , Borrelia burgdorferi , Lyme Disease/etiology , Ehrlichia/classification , Ehrlichiosis/epidemiology , Ehrlichiosis/prevention & control , Anemia, Hemolytic/parasitology , Antibiotic Prophylaxis , Communicable Disease Control
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