Guarujá registra queda de mais de 70% nos casos de dengue

Guarujá, a coastal city in São Paulo state, achieved a significant decline in dengue cases during the first five months of 2026, with 700 confirmed infections compared to 2,590 in the same period of 2025, representing a 72.97% reduction. The municipality's health department attributes this improvement to sustained prevention efforts, including weekly mosquito control operations in high-risk neighborhoods, free water tank screening, inspections of recycling facilities and schools, and the use of guppies as a biological control method. The declining trend reflects years of consistent work, as mosquito infestation rates have dropped substantially, reaching 3.1% in January 2026—the lowest recorded level in recent years. This represents a dramatic improvement from the 8,003 cases registered during the same period in 2024, when the city faced one of its most severe dengue outbreaks.

The case demonstrates how sustained, multi-faceted public health interventions can effectively control dengue transmission in urban areas, offering a model for other municipalities facing similar challenges.