Tick-Borne Diseases in Florida: Not Just Lyme
When people hear tick-borne disease, Lyme disease is usually the first thing that comes to mind. While Lyme disease is the most widely known tick-related illness in the United States, it is not the most common tick-borne infection seen in Florida.
Florida’s warm climate, extended outdoor season, and diverse wildlife allow ticks to remain active nearly year-round. As a result, patients in Florida are exposed to multiple tick species that carry different infections, many of which behave differently than Lyme disease and require specialized evaluation and treatment.
At our infectious disease practice, we frequently evaluate patients with unexplained fevers, fatigue, joint pain, or abnormal labs following outdoor exposure. Understanding which tick-borne illnesses are most relevant in Florida helps patients seek care sooner—and receive the right treatment the first time.
Why Tick-Borne Diseases Are a Year-Round Concern in Florida
Unlike colder regions where tick season is limited, Florida’s mild winters allow ticks to remain active most of the year. This increases the risk of exposure for:
- Gardeners, landscapers, and outdoor workers
- Hikers, campers, and hunters
- Children and pets spending time outside
- Anyone living near wooded or grassy areas
While Lyme disease does occur in Florida, other tick-borne infections are more commonly diagnosed in the Southeast and may present without the classic Lyme rash—making expert evaluation especially important.
Understanding Lyme Disease
Lyme disease is the most common tick-borne illness in the United States, Europe, and parts of Asia. It is caused by Borrelia bacteria and is transmitted through the bite of an infected black-legged tick (often called a deer tick).
What Causes Lyme Disease?
Lyme disease is caused by four closely related Borrelia species:
- Borrelia burgdorferi
- Borrelia mayonii
- Borrelia afzelii
- Borrelia garinii
In the United States, most cases are caused by Borrelia burgdorferi and Borrelia mayonii. These infections are far more common in the Northeast and Midwest than in Florida.
Common Symptoms of Lyme Disease
Early Lyme disease often begins with non-specific, flu-like symptoms, including:
- Fever and chills
- Headache
- Fatigue
- Muscle and joint pain
Some patients develop erythema migrans, an expanding red rash that may appear days to weeks after a tick bite. However, many patients never notice a rash, and symptoms can easily be mistaken for a viral illness.
If untreated, Lyme disease can progress and affect multiple organ systems, including:
- Joints – causing inflammatory arthritis
- Heart – leading to rhythm abnormalities
- Nervous system – causing facial weakness, numbness, or cognitive changes
What Patients Should Know About Lyme Disease
Key facts we discuss with patients during evaluation include:
- Lyme disease is only transmitted through the bite of an infected tick
- A tick typically must be attached for 36 hours or more to transmit infection
- Blood tests may be negative early, even when symptoms are present
- Not all patients develop a rash
- Early antibiotic treatment is highly effective
- Delayed diagnosis can lead to more complex disease
- Tick-borne illnesses are increasing nationwide
- Symptoms often overlap with other infections or inflammatory conditions
- Accurate diagnosis depends on clinical history and regional risk
- Preventing tick exposure remains the best protection
Why Specialist Evaluation Matters
In Florida, patients with suspected tick-borne disease often do not fit the classic Lyme disease picture. Symptoms may be subtle, laboratory findings may be unclear, and standard testing may not provide immediate answers.
Infectious disease specialists are trained to:
- Recognize regional tick-borne illnesses
- Interpret complex or early laboratory results
- Determine when oral antibiotics are sufficient and when IV therapy is needed
- Manage persistent or complicated infections safely
For patients who require intravenous antibiotics, outpatient infusion therapy allows treatment to be delivered effectively, comfortably, and close to home, without prolonged hospitalization.
The Bottom Line for Florida Patients
Lyme disease is only one of several tick-borne illnesses—and in Florida, it is often not the most likely cause of symptoms after a tick exposure. If you develop unexplained fever, fatigue, joint pain, rash, or abnormal lab results after spending time outdoors, early evaluation by an infectious disease specialist can make a critical difference.
Prompt diagnosis and appropriate treatment help prevent long-term complications and unnecessary antibiotic use—ensuring care is both effective and safe.
