Also known as: Lyme Borreliosis
Lyme disease is a bacterial infection transmitted by tick bites, caused by Borrelia burgdorferi. If caught early, it is easily treated with antibiotics. If untreated, it can affect joints, heart, and nervous system.
Lyme disease is the most common tick-borne infection in the Northern Hemisphere, with over 470,000 cases diagnosed annually in the United States alone.
The disease progresses through stages: early localised (rash), early disseminated (systemic symptoms), and late disseminated (joint, neurological, and cardiac involvement). Early antibiotic treatment prevents progression.
The characteristic erythema migrans rash occurs in 70-80% of infected individuals and is diagnostic — antibody tests are often negative in early disease.
People with Lyme Disease often experience the following symptoms.
Expanding red rash appearing 3-30 days after tick bite, often with central clearing (bull's-eye pattern). Diagnostic for Lyme disease.
Multiple erythema migrans, facial nerve palsy, meningitis, or heart block developing weeks after infection.
Intermittent swelling of large joints (especially the knee), occurring months after untreated infection.
Meningitis, cranial nerve palsies, radiculopathy, or encephalopathy.
Certain factors may increase your likelihood of developing Lyme Disease.
Common approaches to managing lyme disease. Always consult a healthcare provider for personalized treatment.
First-line for early Lyme disease in adults and children over 8: 21 days of oral therapy. Also prevents Lyme if given within 72 hours of tick bite.
Alternative first-line antibiotic for children under 8 and pregnant women.
For Lyme meningitis, severe cardiac involvement, or refractory Lyme arthritis.
Prompt removal of attached ticks (within 36 hours) significantly reduces transmission risk.
Clinical diagnosis of early Lyme based on erythema migrans rash and exposure history (antibody tests are often negative early). Two-tier serology (ELISA + Western blot) for later-stage disease.
See a doctor if you develop a bull's-eye rash after a tick bite, or if you experience unexplained joint swelling, facial paralysis, heart palpitations, or neurological symptoms in endemic areas.
Steps that may help reduce the risk of developing or worsening lyme disease.
Tick repellent (DEET, permethrin-treated clothing)
Daily tick checks after outdoor activities
Shower within 2 hours of coming indoors
Prompt tick removal with fine-tipped tweezers
If left untreated or poorly managed, lyme disease may lead to:
Yes. Early treatment with antibiotics is highly effective. Later stages may require longer treatment but also respond well.
Use fine-tipped tweezers, grasp close to the skin, pull upward with steady pressure. Do not twist, squeeze, or burn.
Not currently for humans. A vaccine (VLA15) is in late-stage clinical trials and may become available soon.
This information is for educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition.