The 'D Day' event marked the 9th edition of the 'Together Against Dengue' campaign, which took place in the Ribeirão Preto and Franca regions of Brazil. On this day, 37 municipalities participated in coordinated actions aimed at fighting the dengue-carrying mosquito, Aedes aegypti. The campaign is designed to raise awareness about the health risks associated with dengue and stimulate community involvement in preventive measures.

Local health agents, volunteers, and community members gathered for various activities including litter collection and vaccination efforts. The initiative is part of a broader strategy to tackle outbreaks of dengue and related diseases such as zika and chikungunya, particularly in urban areas where breeding conditions for the mosquito are prevalent. The campaign highlights the importance of collaborative efforts between public health authorities and local governments in addressing public health crises.

The use of an interactive map during this campaign has been a significant tool for providing information to residents about the specific actions being taken in their municipalities. By visualizing the efforts aimed at reducing mosquito populations, the campaign enhances transparency and encourages more residents to participate in preventative measures, reinforcing community-led health initiatives against dengue.