Gates-backed World Mosquito Program reaches 16 million people protected from dengue via Wolbachia method
The World Mosquito Program — backed in part by the Gates Foundation — announced in January 2026 that its Wolbachia-infected mosquito releases had reached over 16.1 million people across multiple countries, including Colombia, Indonesia, Brazil, Sri Lanka, Fiji, Vanuatu, and Vietnam. Wolbachia-carrying Aedes aegypti mosquitoes — which block dengue, Zika, chikungunya, and yellow fever transmission — had established self-sustaining populations in treated cities without requiring ongoing releases. Gold-standard randomised trials in Indonesia showed a 77% reduction in dengue incidence. The program represented one of the largest and most cost-effective vector control deployments in history.
Source: https://www.worldmosquitoprogram.org/en/work/wolbachia-method/impact
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Related Accomplishments
December 2025
Gates Foundation Pledges $100 Million to Global Financing Facility for Women's and Children's Health 2026–2030
On December 6, 2025, at the Universal Health Coverage High-Level Forum in Tokyo, the Gates Foundation pledged $100 million to the World Bank-hosted Global Financing Facility's 2026–2030 strategy for ending preventable deaths among women, children, and adolescents in LMICs. The pledge brings the foundation's total GFF commitment past $500 million since 2015. The GFF provides catalytic grant financing and technical assistance to strengthen LMIC health systems and expand quality access to health and nutrition services for the world's most vulnerable populations.
June 2025
Gates Foundation Pledges $1.6 Billion to Gavi 6.0 (2026–2030) at Brussels Immunisation Summit
At the Global Summit on Health and Prosperity through Immunisation in Brussels on June 25, 2025, the Gates Foundation committed $1.6 billion to Gavi's 2026–2030 cycle — helping secure more than $9 billion of an $11.9 billion target amid sharp cuts to US global health funding. Gavi 6.0 aims to immunise at least 500 million children, save over 8 million lives, and expand malaria and HPV vaccine coverage. The Gates Foundation has contributed over $7.7 billion to Gavi since 2000, making it Gavi's largest private funder.
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