Approximately 2.5 billion people live in areas where there is a risk of dengue fever transmission. The Eliminate Dengue research program is developing an environmentally sensitive and potentially low-cost approach to control the spread of dengue. The program found that when the bacterium wolbachia is present within the dengue-carrying mosquito (aedes aegypti), it reduces the mosquito’s ability to pass the dengue virus to people. The program also found that wolbachia reduces mosquitoes’ ability to transmit other human viruses such as chikungunya and yellow fever, as well as parasites that cause malaria. Eliminate Dengue is working to introduce wolbachia into wild mosquito populations in dengue transmission areas with the goal of reducing risk of dengue acquisition for people living in these areas. FHI 360, serving as a project partner in Thailand and Vietnam, identifies sites to field-test mosquitoes containing wolbachia and works to ensure that communities are informed of releases, that accurate information about the project is available and that local concerns are incorporated into the research program before the mosquitoes are released.