Municipalities in Argentina and Brazil Intensify Aedes aegypti Mosquito Control

Municipal health agencies in Argentina and Brazil have launched intensive operations to curb the Aedes aegypti mosquito, the vector of dengue, Zika and chikungunya.

In the Argentine district of Esteban Echeverría, crews performed fumigation in fifteen neighbourhoods, advising residents to clean gardens, eliminate standing water and use repellents. The city of Buenos Aires announced a week‑long schedule of targeted sprayings across dozens of barrios, complemented by larval monitoring and species identification.

Brazilian municipalities also stepped up. Guarulhos’ Centre for Zoonoses carried out blockades, larval density assessments and responded to citizen reports in 31 locations during the week of 22‑26 June. In Belford Roxo, a community mutirão on 27 June vaccinated 625 animals against rabies while teams sprayed insecticide, distributed educational material and operated a mobile entomology lab. Officials emphasized that the actions are free, that residents should keep yards clean, dispose of waste properly and allow health agents access to homes. The coordinated efforts aim to reduce mosquito breeding sites and limit arbovirus transmission in the coming months.