As temperatures rise, city health officials are ramping up preventative measures against mosquito-borne illnesses like dengue fever. Beginning December 22nd, a multi-pronged strategy will focus on traveler screenings, mosquito control in public spaces-including a renewed effort in local cemeteries-and public awareness campaigns. While no cases have been reported this season, the Aedes aegypti mosquito has been detected in 33 neighborhoods, underscoring the importance of proactive measures and community involvement to build on last year’s success in reducing infection rates.
City officials are bolstering efforts to control the Aedes aegypti mosquito population as a preventative measure against mosquito-borne illnesses like dengue fever. These efforts are particularly important as warmer weather approaches and mosquito activity increases, potentially impacting public health.
Starting December 22nd, health officials will focus on screening travelers entering the city for symptoms of mosquito-borne viruses and inspecting buses arriving from areas with active virus circulation. The goal is early detection and intervention to prevent local outbreaks, according to Lorena Massari, the municipal Undersecretary of Health. Officials are also encouraging the use of insect repellent at transportation hubs.
Coastal Areas and Beaches
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As part of the “Summer Operation,” health teams will be deployed to beaches and coastal areas. In addition to promoting safe sex practices and sun safety, they will distribute insect repellent and provide guidance on avoiding mosquito bites in recreational settings. This comprehensive approach aims to protect residents and visitors alike.
Cemetery Mosquito Control
A campaign to replace water in cemetery flower vases with sand is being relaunched. This initiative targets breeding grounds in standing water, a major source of mosquito reproduction in large areas. Eliminating these breeding sites is a key component of the city’s mosquito control strategy.

Current Mosquito Activity in the City
While no positive cases of mosquito-borne illness have been reported currently, the Aedes aegypti mosquito has been detected in 33 neighborhoods. Massari emphasized that the mosquito breeds in and around homes, making yard and balcony cleanup the most important preventative measure. The success of last season’s efforts, which significantly reduced cases, depends on continued collaboration between the city and residents.
Homeowner Recommendations
Residents are urged to remove any unused objects that can collect water.
Installing mosquito netting in windows and doors is also recommended.
Consistent use of insect repellent, especially during peak mosquito activity hours, is crucial.
Maintaining short grass and clean gutters can also help reduce mosquito breeding sites.