Overview
- Jalisco logged 1,990 confirmed dengue cases through epidemiological week 44 (Oct 26–Nov 1), an 87% drop versus the same period in 2024, according to the state health department.
- Officials attribute the decline to ovitrap monitoring, targeted fumigation, community brigades that removed breeding sites, inspections of schools and public buildings, and the use of guppy fish for larval control.
- Authorities warn the downturn could reverse in winter, citing studies that Aedes aegypti eggs can survive for days near 0 °C and even brief subzero periods, allowing ongoing transmission.
- In the border city of San Luis Río Colorado, municipal health officials confirmed two dengue cases and activated neighborhood outreach and fumigation in coordination with Baja California’s Health District 06.
- Sonora’s health department urged residents to eliminate standing water, cover household storage tanks, wash pet water containers, discard tires and clutter, and seek medical care rather than self-medicating if symptoms arise.