Aedes aegypti in Brazil

Aedes aegypti is a non-native species in Brazil and is responsible for spreading serious viral diseases such as dengue, Zika, chikungunya and yellow fever. Together these viruses infect hundreds of thousands of Brazilians every year, with devastating consequences.

As Aedes aegypti is particularly difficult to control as it lives around humans and has become resistant to many insecticides, the City of Piracicaba has been looking for new technologies to suppress the population of these disease carriers.

We’ve been successfully releasing our self-limiting Friendly Aedes solution in Brazil since 2011.

Read more about how our solution works here.


Population: 65,000 in treated areas of total population of 390,000 residents

Juiz de Fora
Population: 50,000 in treated areas of total population of 580,000 residents

Brazil Contact Details:
0055 (19) 3514-0100
Av. John Dalton, no 92 – Módulo 1, CEP 13069-330
Techno Park, Campinas, SP



In 2015, the City of Piracicaba became the world’s first municipality to release Friendly Mosquitoes (Aedes do Bem). The project was carried out in a single neighborhood of the city, and the project has since expanded to 12 neighborhoods, where we are currently protecting an area of 65,000 residents against the Aedes aegypti mosquito.

In 2016 we opened a Friendly™ Mosquitoes production facility, which has the capacity to produce up to 60 million Friendly Mosquitoes per week, providing sufficient numbers of Friendly Mosquitoes for the city itself and projects elsewhere in the region.

Our project is showing high levels of control against the wild Aedes aegypti population in Piracicaba. In CECAP/Eldorado, the first neighborhood to be treated with Friendly Mosquitoes, the maximum level of suppression was more than 80% relative to an untreated area for two consecutive years. Importantly, 59% fewer Friendly Mosquitoes were required to maintain this level of suppression in the second year, illustrating the strength and durability of our solution.

Treatment in other neighborhoods began in mid-2016 and is already showing promising results. In the first of these, São Judas, suppression had reached 78% relative to an untreated area within six months.

Juazeiro and Jacobina

Between 2011 and 2015, our Friendly Mosquitoes were subject to extensive pilot studies in Brazil by independent collaborators Moscamed and the University of São Paulo. Trials took place in the neighborhoods of Itaberaba and Mandacaru in Juazeiro, and in Jacobina.

These releases of our Friendly Mosquitoes reduced the wild population by up to >90%, compared to a control area that was not treated with our mosquitoes. More information is available in this published paper.

In these releases of our Friendly™ Mosquitoes reduced the wild population by up to 90+%, compared to a control area that was not treated with our mosquitoes. More information is available in this published paper.

Juiz de Fora

Juiz de Fora in Minas Gerais state began using Friendly Mosquitoes in November 2017. The mosquitoes are first being deployed in an area of 10,000 people, chosen because of the high prevalence of dengue. The project will then be expanded to treat an area of 50,000 people in the city.