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View the latest updates from the World Mosquito Program in Medellín.

The World Mosquito Program is working in Medellín to protect communities from mosquito-borne diseases like dengue, Zika, chikungunya and yellow fever. 

After conducting laboratory studies to examine the impact of Wolbachia on dengue, Zika and chikungunya viruses in Colombia, we have worked in Bello and Medellín to explain our Wolbachia method and gain consent from these communities.

Since receiving the community’s support in Bello and Medellín, we have released Wolbachia-carrying mosquitoes in these areas.

WMP in Medellín
Project status
Medellín: Releasing mosquitoes
Bello: Monitoring
Itagüí: Community engagement
Sabaneta: Community engagement
Number of people reached
Total area reached
101 km²
community release in Colombia

We are rigorously evaluating both the levels of Wolbachia in the mosquito population and the impact of Wolbachia on the transmission of dengue and other mosquito-borne diseases across Medellín.

There have been no dengue outbreaks in Wolbachia-treated areas of city-wide deployments. 

We are currently running a large-scale investigation into the effectiveness of using Wolbachia to control dengue, Zika and chikungunya in Medellín. This process will be continuously monitored until conclusive results are obtained.

The Medellín area has a long history with mosquito-borne diseases, with major outbreaks of dengue in 2010 and 2016 affecting more than 35,000 people. 

WMP in Colombia

Progress updates

We’ve been working with communities in Colombia since 2012 to help prevent mosquito-borne diseases. Read our progress updates to see our latest news.