Travelers from Florida, returning from Cuba, account for all 90 reported cases of Oropouche, commonly known as sloth fever, within the state. Researchers are actively investigating whether this mosquito-borne illness could begin to spread within Florida itself, raising significant health concerns.
The United States has recorded a total of 94 cases of Oropouche, designating Florida as a primary hotspot for the importation of the virus. Other states such as California, Colorado, Kentucky, and New York have reported isolated cases, as noted by the Centers for Disease Control and Prevention.
Historically, outbreaks of Oropouche were largely confined to the Amazon basin. However, the virus has now spread more broadly across South America and the Caribbean, subsequently surfacing in Florida thanks to returning travelers.
Although no cases have emerged locally in Florida, the CDC has allocated $1 million to the University of Florida to assess whether particular mosquito species found in the state might facilitate the transmission of the Oropouche strain currently circulating in Cuba, as communicated by a CDC spokesperson via email to the Phoenix.
Moreover, mosquito control initiatives across Florida are devising response strategies in the event that Oropouche infiltrates the local mosquito population. Kiera Lucas, a board member of the Florida Mosquito Control Association, elaborated on this in a phone interview with Florida Phoenix.
“The challenging thing about Oropouche when it comes to mosquito control is that it’s also spread by Culicoides, which are basically no-see-ums, and the particular species of no-see-ums that it’s spread by is found in hardwood forests. It can also be transmitted by certain mosquito species,” explained Lucas, who operates out of Collier County.
Miami-Dade County has been the hardest hit, with 53 recorded cases, as detailed in the state’s recent arbovirus report. Other impacted counties include Hillsborough with 12 cases; Lee with 5; Polk with 4; and Broward, Orange, and Pasco with 3 each. Palm Beach has 2 cases, while Collier, Duval, Marion, Sarasota, and St. Lucie each report one.
Although Oropouche lacks a specific treatment protocol, the CDC recommends that individuals infected with the virus rest, stay hydrated, and utilize over-the-counter medications such as ibuprofen or aspirin to alleviate symptoms.
The predominant symptoms reported by U.S. patients include fever, muscle aches, headache, fatigue, and joint stiffness. Additionally, some individuals who contracted the virus have experienced diarrhea, abdominal pain, and vomiting, according to the CDC.
Oropouche has been linked to fetal deaths and potential birth defects in Brazil. Moreover, the detection of the virus in a patient’s semen has raised concerns about possible sexual transmission, as per the CDC’s findings.
Other mosquito-borne illnesses in Florida
Lucas highlighted that other mosquito-borne illnesses, such as dengue and West Nile virus, remain a significant concern in the wake of hurricanes Helene and Milton, which caused extensive flooding in Florida in late September and early October. Currently, 28 of Florida’s 67 counties are under alerts and advisories for mosquito-borne illnesses.
So far this year, Florida has documented 21 cases of West Nile virus, 66 cases of locally transmitted dengue, and 758 instances of travel-associated dengue, reflecting trends noted in the state’s latest arbovirus report.
“Because of Florida’s tropical and subtropical climate, especially South Florida, we can sustain mosquito populations year-round, and mosquito-borne disease is always a concern for Florida, and it’s usually the gateway for mosquito-borne diseases such as dengue virus or Oropouche,” Lucas stated.
To mitigate the risk of contracting viruses transmitted by mosquitoes, individuals are advised to minimize outdoor activities at dawn and dusk, wear long-sleeved clothing, apply EPA-registered insect repellents, and eliminate standing water around their residences.
What are the primary prevention strategies residents can implement to protect themselves from Oropouche virus transmission in Florida?
**Interview with Kiera Lucas, Board Member of the Florida Mosquito Control Association**
**Interviewer:** Thank you for joining us today, Kiera. Given the recent outbreak of Oropouche in Florida, how concerned should residents be about the potential local transmission of this virus?
**Kiera Lucas:** Thank you for having me. Residents should definitely be aware and proactive. While all reported cases to date have been among travelers returning from Cuba, we are researching how local mosquito populations could play a role in potential future transmission.
**Interviewer:** What makes Oropouche particularly challenging for mosquito control efforts?
**Kiera Lucas:** The unique challenge here is that Oropouche is not only spread by common mosquitoes but also by Culicoides species—commonly known as no-see-ums. The no-see-um species that can transmit the virus are typically found in hardwood forests, which complicates our control strategies.
**Interviewer:** With funding from the CDC to assess local mosquito species, what steps is the Florida Mosquito Control Association taking to prepare for a possible outbreak?
**Kiera Lucas:** Our teams are actively conducting surveillance and collaborating with researchers at the University of Florida to identify which mosquito species are present and their potential for transmitting the virus. We’re also developing targeted mosquito control initiatives, particularly in areas where no-see-ums are prevalent.
**Interviewer:** Considering the significant number of cases reported in Miami-Dade County, how is the situation being handled in those high-traffic areas?
**Kiera Lucas:** In Miami-Dade, we’ve ramped up our mosquito control operations and are focusing on public awareness campaigns. It’s crucial for residents to take precautions—using repellents, eliminating standing water, and being aware of peak breeding times for mosquitoes.
**Interviewer:** What recommendations does the CDC have for those potentially infected with Oropouche?
**Kiera Lucas:** Although there isn’t a specific treatment for Oropouche, the CDC advises rest and hydration. Over-the-counter medications like ibuprofen or aspirin can help alleviate symptoms.
**Interviewer:** Thank you, Kiera, for shedding light on this important issue. What final message would you like to share with our audience?
**Kiera Lucas:** Stay informed and vigilant. If you have traveled to areas where Oropouche is present, monitor your health and seek medical advice if you experience symptoms. Protecting ourselves starts with awareness and precautionary measures.
**Interviewer:** Thank you for your time, Kiera. We appreciate the work you and your organization are doing to keep Florida safe.
