Boa Vista launches intensive Aedes aegypti mutirão to curb rising dengue cases

The municipal government of Boa Vista, Brazil, began a week‑long mutirão on 23 June to combat Aedes aegypti in the 13 de Setembro neighbourhood, where the latest rapid survey (LIRAa) recorded a 13 % infestation rate, well above the city’s overall 6.9 % high‑risk level. Teams of Agentes de Combate às Endemias and Agentes Comunitários de Saúde visited homes on Saturdays to locate and eliminate breeding sites such as water‑filled containers, plant pots and air‑conditioner drip trays.

The effort is coordinated with the state Defence Civil, the Secretariat of Health (Sesau) and the Vigilance and Disaster Monitoring sector (Vigidesastre). "Our rainy period with high temperatures creates ideal conditions for mosquito proliferation," said Rodrigo Maciel, Defence Civil manager, adding that neighbouring municipalities such as Mucajaí, São Luiz and Baliza have also requested assistance. Health officials emphasized that most mosquito foci are inside homes; Samuel Garça of the Unit of Zoonoses Surveillance urged residents to scrub containers to destroy eggs.

Dengue cases in Roraima rose 36 % from January to May 2026 compared with the same period in 2025, prompting the intensified campaign, while chikungunya reports fell sharply. Authorities stress that community participation—allowing agents entry and removing standing water—is essential to reducing disease transmission.