Dengue Virus Cases Prompt Intensified Mosquito Control Efforts in Pasco County
As of October 17, the Pasco County Mosquito Control District has reported five confirmed cases of locally acquired dengue virus. In light of this surge, coupled with the aftermath of Hurricanes Helene and Milton, which each devastated different parts of the county, the district is ramping up its mosquito control initiatives.
Mosquitos are often considered the deadliest animals on earth, thriving in stagnant water such as swamps, puddles, and containers like tires and garbage cans. According to Adriane Rogers, executive director of the district, the two hurricanes have created a significant risk of mosquito infestation. “The double impact of these storms puts the county in jeopardy,” she said in a recent interview.
Typically, high winds during hurricanes would eliminate adult mosquitos; however, Rogers noted that the real danger lies in the excess water brought by the storms. “Helene created unprecedented tidal surges, leading to expanded marshy areas and standing water beyond the county’s capacity,” she explained.
The follow-up storm, Milton, caused massive river flooding which worsened the situation, particularly in central and eastern Pasco. “There are neighborhoods still dealing with up to three feet of water in places that have never flooded before,” Rogers reported.
Although some floodwaters may eventually recede, many areas will remain inundated for the foreseeable future, prompting the need for long-term strategies to manage mosquito populations. The flooding complicates control efforts, as district personnel struggle to access certain regions with their equipment.
In response, the district’s staff has been conducting mosquito control operations at all hours. “Our primary concern is the health and safety of our residents,” Rogers stated. “Effective mosquito control is crucial to prevent the spread of diseases, especially with recent cases of locally acquired dengue virus.” To counter the threat, her team is utilizing trucks, ATVs, and helicopters to target both larval and adult mosquito populations.
The district is also tackling debris management left in the wake of the hurricanes, which has created new potential breeding sites for mosquitos.
Rogers has emphasized that community involvement is vital for mitigating mosquito risks by urging residents to “Drain and Cover.” It is essential for individuals to regularly check and drain items that can collect standing water, including garbage cans, pool covers, and flower pots. Additionally, birdbaths and pet bowls should be cleaned weekly, and swimming pools need to be properly chlorinated. Outside, using insect repellent and wearing protective clothing is encouraged, especially as cooler weather sets in and windows are kept open.
Infected mosquitos can spread several diseases, including malaria, various types of encephalitis, yellow fever, and Zika in humans, as well as heartworm disease in animals. While there is a vaccine to prevent dengue fever, it remains uncommon in this part of Florida and many residents are not vaccinated.
Previously, in September, the county confirmed two dengue cases in West Pasco, which has now risen to five. Although many infections present mild symptoms, severe cases may lead to shock, internal bleeding, or even death, necessitating hospital monitoring. Given the homogeneity of initial symptoms with other viral illnesses—like headaches and joint pain—it is crucial for residents who have been bitten by mosquitos or live in dengue-affected areas to inform their healthcare provider.
For more information, visit the Pasco County Mosquito Control District website at www.pascomosquito.org/.