Gates Foundation Funds Development of PNEUMOSIL — Most Affordable Pneumococcal Vaccine in the World
In 2008, PATH and the Serum Institute of India began a Gates Foundation-funded collaboration to develop PNEUMOSIL, a 10-valent pneumococcal conjugate vaccine (PCV10) targeting the serotypes responsible for greatest child mortality in Africa, Asia, and Latin America. PNEUMOSIL received WHO prequalification in December 2019 at approximately $2 per dose — roughly 30 percent less than competing PCV products from Pfizer and GSK — and was the first pneumococcal vaccine developed specifically for high-burden rather than high-income markets.
Source: https://www.path.org/our-impact/case-studies/developing-more-affordable-pneumococcal-vaccine/
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Related Accomplishments
January 2026
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.
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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.
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