ABSTRACT
As applied to vector-borne disease control, the term community participation has been broadly interpreted. Community-based vector control projects have been described as having both active and passive components. Recently, community participation in organized efforts to control Chagas' disease has become more dynamic, with increasingly active involvement by local community members. Chagas' disease is a particularly significant vector-borne disease problem in the South American countries of Brazil, Venezuela, and Bolivia, and health officials there are beginning to emphasize horizontal or decentralized approaches to control of triatomine vectors. Experience suggests that vector control programs using community participation have significant and sustainable impact on vector density, appear to be more cost-effective than purely vertically structured programs, are readily integrated with other health or development programs, promote an enduring sense of pride in home and community, and are politically viable vector control strategies. Community participation per se has inherent value because of its positive effect on social relationships and community solidarity. Moreover, it is a dynamic process that results in accrued benefits for public health that exceed most vector control program goals and persist well beyond program termination.
Subject(s)
Chagas Disease/prevention & control , Community Health Services , Insect Control/methods , Insect Vectors , Triatoma , Animals , Housing , Humans , Insect Control/trends , South AmericaABSTRACT
Se estudia una nueva tecnica de xenodiagnostico artificial, comparando la efectividad de diversos tipos de membranas y de anticoagulantes para favorecer la alimentacion, a temperatura ambiente, de ninfas de Rhodnius prolixus
Subject(s)
Clinical Laboratory Techniques , Rhodnius , Chagas DiseaseABSTRACT
Se estudia la dinamica de poblacion de Didelphis marsupialis en relacion con la infeccion por Trypanosoma cruzi en la zona centro-occidental de Venezuela. Se encontro que los indices de infeccion por T. cruzi estaban en correlacion con la estructura de la poblacion del huesped y que eran mayores durante la epoca de reproduccion de D. marsupialis. Los datos acerca de una segunda poblacion indicaron una disminucion del indice de infeccion debida quiza a la supresion de gran parte de la poblacion adulta de D. marsupialis antes de que hubiese infectado a la generacion de R. prolixus responsable de la transmision a la poblacion joven del ano
Subject(s)
Insect Vectors , Opossums , Trypanosoma cruzi , Chagas DiseaseABSTRACT
El ciclo biologico del Triatoma maculata ha sido estudiado en condiciones de laboratorio.La evolucion de huevo a adulto se completo en un periodo minimo de 129 dias, un maximo de 281 con un promedio de 200,1 dias produciendo entonces 1,3 a 2,8 generaciones por ano. Algunas informaciones adicionales sobre la biologia de esa especie en el laboratorio fueron tambien sacadas de los experimentos y eso permitio estimar que una hembra fecundada podria producir de algunas decenas varios millares de adultos al final de un ano, resguardadas las condiciones en que se desarrollo el experimento
