6 Lone Star Tick Diseases You Can Get From an Infected Bite
The Lone Star tick (Amblyomma americanum) is an aggressive tick species commonly found in the southeastern and eastern United States. Unlike some other ticks, it actively seeks out hosts and can transmit several serious illnesses through a single bite. Knowing the risks can help you recognize symptoms early and seek proper medical care.
1. Ehrlichiosis
Ehrlichiosis is one of the most common diseases spread by the Lone Star tick. It is caused by bacteria that attack white blood cells.
Symptoms may include:
Fever and chills
Headache
Muscle aches
Fatigue
Nausea or vomiting
If untreated, ehrlichiosis can become severe, especially in older adults or people with weakened immune systems.
2. Tularemia
Tularemia, sometimes called “rabbit fever,” is a rare but potentially serious bacterial infection.
Common symptoms:
Sudden fever
Skin ulcers at the bite site
Swollen lymph nodes
Sore throat or cough
Early antibiotic treatment is highly effective.
3. Heartland Virus Disease
Heartland virus is a tick-borne viral illness linked specifically to the Lone Star tick. There is no specific antiviral treatment.
Symptoms often include:
Fever
Fatigue
Headache
Diarrhea
Low white blood cell and platelet counts
Severe cases may require hospitalization.
4. Bourbon Virus Disease
Bourbon virus is another rare but serious virus transmitted by Lone Star ticks.
Possible symptoms:
Fever
Rash
Body aches
Extreme fatigue
Because it is rare, diagnosis can be challenging, and treatment focuses on supportive care.
5. Southern Tick–Associated Rash Illness (STARI)
STARI causes a rash similar to the one seen in Lyme disease, although it is not caused by the Lyme bacteria.
Key signs include:
Red, expanding rash near the bite
Fatigue
Headache
Muscle pain
The long-term effects of STARI are still being studied.
6. Alpha-Gal Syndrome (Red Meat Allergy)
One of the most unusual conditions linked to Lone Star ticks is alpha-gal syndrome. The bite can trigger an immune reaction that causes an allergy to red meat and other mammal-derived products.
Symptoms may include:
Hives or itching
Gastrointestinal distress
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