AI and Citizen Science Join forces to Track Invasive malaria Mosquito in Madagascar
A novel approach combining artificial intelligence and photos submitted by the public has led to the first confirmed detection of Anopheles stephensi in Madagascar,raising concerns about the spread of this highly efficient malaria vector across Africa.
The World Health Institution (WHO) has identified the proliferation of Anopheles stephensi as a major threat to malaria control and elimination efforts,particularly on the African continent. Researchers recently published findings in the journal Insects demonstrating how local communities and digital technology can effectively bridge surveillance gaps, especially in densely populated urban environments where traditional monitoring methods are often inadequate.
The discovery in Madagascar was made possible through a citizen science initiative where a local resident submitted a photo of a suspected mosquito through a mobile app. Carney, associate professor of digital science at the University of South Florida and lead author of the study. His team had previously amassed thousands of verified images of Anopheles stephensi and other local mosquito species, using them to train sophisticated AI image recognition algorithms. This technology was then deployed to analyze the citizen-submitted photo, ultimately confirming the species.
The ability of citizen-generated data to provide early warnings is a meaningful advantage. According to Carney, conventional mosquito trapping methods are often expensive, require specialized expertise, and are difficult to scale, particularly across diverse regions. “Citizen science should be a priority for both local communities and international health bodies like the WHO to complement ongoing Anopheles stephensi surveillance measures in hard-to-reach and densely populated regions,” he stated.
Anopheles stephensi poses a particularly acute threat due to its high susceptibility to the malaria parasite and its increasing resistance to commonly used pesticides. The mosquito thrives in urban settings, breeding in artificial containers like tires and buckets, enabling year-round malaria transmission. A prior study suggested its spread could place an additional 126 million people at risk of contracting malaria across Africa.
to facilitate wider participation, researchers recommend leveraging freely available apps such as iNaturalist, Mosquito Alert, and NASA’s GLOBE Observer. These platforms are globally accessible and offer multilingual support, including Swahili and Arabic, to encourage broader community involvement. Citizen scientists can contribute by submitting close-up photos of mosquitoes or larvae, ideally captured with a smartphone and a 60x magnifying lens, for verification.
The Global Mosquito Observations Dashboard, which aggregates mosquito photos and location data from around the world, provides a valuable resource for local health ministries and mosquito control programs. This tool allows officials to pinpoint areas requiring targeted surveillance or intervention.
Andrianjafy Mbolatiana, an entomologist at the University of Antananarivo, emphasized the practical value of this technology for Madagascar. “We lack sufficient financial and human resources to monitor vector-borne diseases such as malaria,” he said. “This technology complements the standard surveillance method and will help us detect and prevent invasive and dangerous species, such as Anopheles stephensi.”
However, Mbolatiana cautioned that limited access to smartphones and reliable internet connectivity among the Malagasy population could hinder widespread participation. Researchers acknowledge these limitations,noting that awareness of citizen science apps and the specific photographic requirements – including the use of a 60x clip-on lens – are key barriers to entry.The team has launched the MosquitoesInAfrica.org campaign to address the awareness gap.
“The photos must be taken with that 60x clip-on lens for the AI results to be valid, since the AI algorithms were trained on only this type of photos,” Carney clarified.He recommends that public health agencies and malaria control programs support citizen scientists in acquiring the necessary equipment and promoting awareness of the technology.
The need for community-driven solutions is particularly pressing given recent cuts in international aid to Africa. Mohga Kamal-Yanni, a global health and access-to-medicines consultant at The People’s Medicines Alliance, believes empowering local communities is crucial for tackling malaria from the ground up. “For decades africa has relied on foreign aid to tackle disease, including disease surveillance and control,” she noted. “But with cuts in international aid, a huge gap has emerged on the continent which needs to be filled through other means such as the citizen scientists approach.”
