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London School of Hygiene & Tropical Medicine Malaria Centre

Evaluation of an Aedes-control intervention scaled- up under an inter-sectoral approach in a hyper-endemic municipality in Colombia

26 March 2018, 12:45 pm
LG8, Keppel Street
PhD Upgrading Seminar


In Colombia, Aedes aegypti transmitted diseases have gained significant interest, particularly with the introduction of chikungunya and Zika in the Americas during 2014 and 2015, and the increasing spread of dengue (DENV). In response, Colombia has initiated the scaling-up of a successful community-based intervention under multi-sector partnerships in Girardot, one of the most hyperendemic DENV cities of the country. The intervention aims to cover the most productive Aedes breeding sites with protective netting to prevent mosquitoes from laying their eggs and consequently, reduce mosquito populations. The intervention also seeks to build solid networks with multi-actor players and influence vector control policies. 

There are several limiting and facilitating factors that can affect the effectiveness of the intervention, its integration into the vector control programme and sustainability. Therefore, an evaluation of the intervention is needed to assess the potential effectiveness of the scaled-up Aedes control intervention on the incidence of dengue and Ae. aegypti density. Reported dengue cases, entomological indicators and associated factors will be analysed from available data set of the local Colombian disease and vector surveillance systems as well as from baseline and follow-up household and entomological surveys.

The process of implementation, along with the role that inter-sectoral collaboration/action approach plays in scaling-up, will also be assessed by conducting  a retrospective case study with a mixed-method approach. Primary data, via semi-structured interviews with key stakeholders, will be collected to conduct a process evaluation of the implementation and  the mechanisms of change of the intervention. Additionally, a review of study logs, policy documents and other official documents such as guidelines, minutes, laws and decrees will be conducted to provide insight into the intervention process and its context. 

Both, intervention effectiveness and scaling–up undestanding will support recommendations to improve DENV and Ae. aegypti control in Colombia and other developing countries. 


Speaker: Juliana Quintero
Supervisors: James Logan and Thomas Ant
Date: 26 March 2018
Time: 12:45 pm
Venue: LG8, Keppel Street