| chagas' disease in el salvador. | several studies on chagas' disease in el salvador have supplied important epidemiologic information, including the following: (1) rates of house infestation by triatomid vectors have ranged from 26.3 per cent to 100 per cent in various localities studied, higher rates being found in rural than in urban areas. (2) triatoma dimidiata and rhodnius prolixus are the two vectors of t. cruzi in el salvador, with t. dimidiata predominating in localities at elevations above 600 meters and r. prolixus in ... | 1975 | 808244 |