Reservorios mamíferos del Trypanosoma cruzi en Paraguay
Keywords:
reservorios mamíferos, Trypanosoma cruzi, ParaguayAbstract
La transmisión enzoótica del Trypanosoma cruzi en Paraguay aún no ha sido bien determinada. Por lo tanto, todavía se desconocen varios aspectos de la dinámica de transmisión de este parásito en el medio selvático, como ser especies de reservorios naturalmente infectados, cepas circulantes y el grado de interacción con el ciclo doméstico. Con los estudios realizados hasta la fecha, se han identificado cinco especies como reservorios naturales del T. cruzi: Didelphis azarae, Monodelphis domestica, Dasypus novemcinctus, Euphractus sexcinctus y Chaetophractus spp. en el ambiente silvestre de zonas endémicas para la enfermedad de Chagas (Chaco y San Pedro). Entre éstas se destaca la especie Dasypus novemcinctus, en la cual se ha observado una alta prevalencia de infección de alrededor del 50%. En el ambiente doméstico, se han reportado perros infectados con este parásito en mayor proporción y en menor grado gatos, reses y cerdos.
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