| epidemiology of chagas disease in ecuador. a brief review. | chagas disease is a complex public health problem that has been underestimated in ecuador. here we review the relevant published information, and present unpublished and new data that help to understand the current chagas disease epidemiological situation and its evolution in the country. three main characteristics have been identified: (i) persistence of trypanosoma cruzi transmission in already known foci; (ii) a marked endemicity in some urban areas of guayaquil; and (iii) the transformation ... | 1999 | 10677762 |