Baja California Sur has recorded 93 confirmed dengue cases so far in 2026, with no deaths, according to the state Secretary of Health. La Paz leads the count with 46 cases, followed by Los Cabos with 36, Comondú with nine, and Loreto with two.
Health Secretary Ana Luisa Guluarte Castro said the state’s Vector Control Program has stepped up larval control operations and indoor fumigation in neighborhoods where probable or confirmed cases have been detected. The Aedes aegypti mosquito, which transmits dengue, breeds in standing water commonly found in residential areas.
Case Count Down Sharply From 2025
The 93 cases through early 2026 represent a significant drop compared to last year. Baja California Sur closed 2025 with 680 confirmed dengue cases statewide. As recently as early March, the state had reported just 53 cases, meaning the count nearly doubled over the past several weeks.
Annual outbreaks have hit BCS in 2023 and 2024 as well, concentrating in the population centers of La Paz and Los Cabos during and after the summer rainy season. Dengue is endemic to tropical and subtropical climates, and the southern half of the Baja Peninsula falls squarely in that zone.
State Urges ‘Wash, Cover, Flip, and Toss’ Protocol
Guluarte Castro is urging residents to follow the “wash, cover, flip, and toss” protocol. That means washing water storage containers weekly, covering barrels and cisterns, flipping buckets and pots that collect rainwater, and tossing any items that trap standing water around the home. These steps target the Aedes aegypti mosquito’s preferred breeding sites.
Los Cabos has also deployed a biological strategy called the Wolbachia Project. The initiative releases mosquitoes carrying a harmless bacterium that prevents them from transmitting dengue, Zika, and chikungunya to humans. Health officials say the method has already produced results in La Paz, where transmission rates dropped.
What Residents and Visitors Should Know
Dengue cases in BCS tend to concentrate in residential neighborhoods, not in tourist corridors or resort zones. Oceanfront properties benefit from constant wind off the Sea of Cortez, which keeps mosquitoes at bay. Most resorts also conduct daily fumigation and eliminate standing water on their grounds.
Dengue symptoms include high fever, severe headache, pain behind the eyes, and joint and muscle pain. Severe dengue can be fatal without prompt medical treatment. Anyone experiencing these symptoms should seek medical attention immediately.
The state health data was published by the Baja California Sur Secretary of Health via bcs.gob.mx.