Existe una notoria ausencia de coherencia conceptual en el uso de los términos gobernabilidad y gobernanza (considerado sinónimo de "gobernancia") en América Latina, tanto en ciencias sociales y políticas, como en el dominio de la salud. Esto se expresa con mayor fuerza en una diferente comprensión del término gobernanza por parte de los investigadores, un uso heterogéneo en ámbitos académicos, su desconocimiento por parte de los tomadores de decisión, y una gran confusión y ambigüedad de significados en su uso por parte de unos y de otros. En contraposición al uso predominante de carácter normativo, promocionado por parte de la mayoría de las agencias internacionales, se propone aquí el desarrollo y aplicación de un marco conceptual-analítico de gobernanza para la investigación en sistemas y servicios de salud. Los avances en el diseño del marco metodológico fueron aplicados en una investigación de evaluación del Seguro Público de Salud de Provincia de Buenos Aires, Argentina. Ello permitió valorar su utilidad como herramienta para sistematizar la complejidad social, política e institucional de los procesos de formulación e implementación de las políticas de salud.

Background : Central America is considered a hotspot for Chagas disease transmission and the most important vector in the northern region is Triatoma dimidiata; a native vector adapted to multiple environments, including intra domestic and peri-domestic habitats. Chagas Disease is the leading cause of death associated with heart disease in Latin America, affecting mostly low-resources populations and the presence of the vector is associated to poor house constructions.Methods: A multi-institutional project named "Alliances for the elimination of Chagas in Central America" was created to help reduce the incidence of the disease in the region. Each institution performing speci c role including aspects of vector control, quality of housing, surveillance implementation, diagnosis and treatment of individuals, health promotion, and training of human resources.Results: Eleven villages were entomologically evaluated; ve villages were found to have high infestation rates (>20%), three had average infestation rates (10-20%) and three had low-infestation rates (<10%), coinciding with the type of risk-dwelling found in each of one.Additionally, all the villages had colonization rates greater than 50%, and several showed important levels of triatomine overcrowding. This high colonization dynamic represents a high risk of vector transmission of Chagas disease; it was necessary to improve the household so as to make them refractory to infestation, reducing those characteristics that are appropriate for colonization. Serological tests carried out in two of the 11 villages showed that children under ve years of age were not infected and the prevalence of infection was higher in women than men, showing the importance of women in the disease transmission dynamics, making education and empowerment directed towards women critical for transmission control.Conclusion: Several institutions working together with speci c roles promotes the community partition in several activities as vector control and patience attendance. Some epidemiological factor of the native vector was described.

Objective: To evaluate the protective effect of house screening (HS) on indoor Aedes aegypti infestation, abundance and arboviral infection in Merida, Mexico. Methods: In 2019, we performed a cluster randomised controlled trial (6 control and 6 intervention areas: 100 households/area). Intervention clusters received permanently fixed fiberglass HS on all windows and doors. The study included two cross-sectional entomologic surveys, one baseline (dry season in May 2019) and one post-intervention (PI, rainy season between September and October 2019). The presence and number of indoor Aedes females and blood-fed females (indoor mosquito infestation) as well as arboviral infections with dengue (DENV) and Zika (ZIKV) viruses were evaluated in a subsample of 30 houses within each cluster.Results: HS houses had significantly lower risk for having Aedes aegypti female mosquitoes (odds ratio [OR] = 0.56, 95% CI 0.33-0.97, p = 0.04) and blood-fed females (OR = 0.53, 95% CI 0.28-0.97, p = 0.04) than unscreened households from the control arm. Compared to control houses, HS houses had significantly lower indoor Ae. aegypti abundance (rate ratio [RR] = 0.50, 95% CI 0.30-0.83, p = 0.01), blood-fed Ae. aegypti females (RR = 0.48, 95% CI 0.27-0.85, p = 0.01) and female Ae. aegypti positive for arboviruses (OR = 0.29, 95% CI 0.10-0.86, p = 0.02). The estimated intervention efficacy in reducing Ae. aegypti arbovirus infection was 71%. Funding information International Development Research CentreConclusions: These results provide evidence supporting the use of HS as an effective pesticide-free method to control house infestations with Aedes aegypti and reduce the transmission of Aedes-transmitted viruses such as DENV, chikungunya (CHIKV) and ZIKV.

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