The dengue fever project with Johnson & Johnson revealed an average infection rate of 33% in Rio de Janeiro favelas, in contrast to the 4% rate estimated by government. Mobile Metrix conducted 700 surveys in two communities in Rio de Janeiro, distributing and demonstrating the proper use of mosquito repellent.

After the survey and intervention, three times as many people knew the most common places where the mosquito deposits eggs, 27% increased their use of repellent, and 59% indicated they would buy the product. The study insights also aided Johnson & Johnson to restructure their marketing strategy to better meet the needs of the target market.