Brazil Launches Nationwide ‘Dia D’ to Curb Dengue as 2025 Outbreak Intensifies

Overview

• Heavy rain forced the Rio de Janeiro state event to move from Quinta da Boa Vista to Rio Imagem Centro, while municipal teams carried out inspections, vaccination, education and property visits across the city.
• National surveillance reports 1,623,310 probable dengue cases in 2025 and 1,711 deaths, with 30% of municipalities on alert for the disease.
• São Paulo leads the country with 893,245 probable cases and will intensify visits and cleanups across all 645 municipalities from November 10 to 14.
• The campaign prioritizes eliminating breeding sites most often found in plant pots, tires, water tanks, tree cavities and gutters, based on surveys in more than 3,200 cities.
• Qdenga is available in the public system for ages 10 to 14 and privately for ages 4 to 60, while the ministry cites an expectation of Butantan vaccine approval by year-end and outlines R$183.5 million in 2026 vector-control investments including larvicide stations, sterile-mosquito releases and an expanded Wolbachia program.