Mexico Reports Over 109,000 Dengue Cases in 2025

According to the Pan American Health Organization (PAHO) mosquito-transmitted disease dashboard, Mexico has reported over 109,771 dengue fever cases in 2025.

As of October 27, 2025, there have been 48 dengue-related fatalities confirmed this year.

Last year, Mexico reported 558,846 dengue cases and 478 related fatalities.

Specifically, during epidemiological week 39, 17 countries reported the circulation of dengue in the Region of the Americas: Brazil, Costa Rica, El Salvador, Mexico, and Panama. As of this week, the subregion exhibits a decrease of 77% compared to the same week in 2024

Several of these locations reported the the simultaneous circulation of DENV-1, DENV-2, DENV-3, and DENV-4 virus subtypes.

To Mexico's north, the Texas DSHS Arbovirus Activity Report Week #42 disclosed 45 dengue cases this year.

In 2024, Texas reported 143 dengue cases and one related fatality.

In Cameron County, one locally transmitted dengue case was confirmed. 

Without access to dengue vaccines, Texas says, since Aedes mosquitoes usually bite people during the day, especially during early morning hours before daybreak and in the late afternoon before dark, when they are most active, use a mosquito repellent containing "DEET" on exposed skin to prevent infections.