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    Home Lyme Disease: Symptoms, Causes, and Prevention of This Tick-Borne Illness
    Lifestyle Desk
    English Health & Fitness

    Lyme Disease: Symptoms, Causes, and Prevention of This Tick-Borne Illness

    Lifestyle DeskZoombangla News DeskAugust 1, 20254 Mins Read
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    Lyme disease is a bacterial infection primarily transmitted to humans through the bite of infected blacklegged ticks (also called deer ticks). These tiny arachnids carry Borrelia bacteria, which enter the bloodstream during feeding. First identified in Lyme, Connecticut, in 1975, Lyme disease has since become the most common vector-borne illness in the Northern Hemisphere, with an estimated 476,000 diagnoses annually in the U.S. alone.

    Symptoms: Recognizing the Stages

    Lyme disease symptoms typically progress in stages and vary widely:

    1. Early Localized Stage (3-30 days post-bite):

      • Erythema migrans (EM) rash: Expands gradually (often 5+ inches), sometimes resembling a “bull’s-eye” (though this pattern appears in only 20% of U.S. cases).

      • Flu-like symptoms: Fever, chills, headache, fatigue, muscle/joint aches, swollen lymph nodes.

    2. Early Disseminated Stage (Weeks to months post-bite):

      • Additional EM rashes on other body parts.

      • Facial palsy (drooping on one/both sides).

      • Severe headaches, neck stiffness.

      • Heart palpitations (Lyme carditis).

      • Nerve pain, numbness, or tingling.

    3. Late Disseminated Stage (Months to years post-bite):

      • Severe joint pain/swelling (Lyme arthritis), often in knees.

      • Neurological issues: Brain fog, memory problems, nerve damage.

      • In Europe: Skin swelling/discoloration (acrodermatitis chronica atrophicans).

    Note: Not everyone develops the rash, and symptoms can overlap or occur without a known tick bite.

    Lyme disease

    Causes and Transmission

    • Pathogen: Borrelia burgdorferi (U.S.), B. afzelii or B. garinii (Europe/Asia).

    • Vector: Blacklegged ticks (Ixodes scapularis in Eastern U.S., I. pacificus in Western U.S., I. ricinus in Europe).

    • Transmission: Ticks must be attached 36-48 hours to transmit bacteria. Nymphs (poppy-seed-sized) cause most infections in spring/summer.

    Risk Factors

    • Spending time in grassy/wooded areas (gardening, hiking, camping).

    • Living/traveling in endemic regions: Northeast, Mid-Atlantic, Upper Midwest U.S.; Europe, South Canada.

    • Pets that roam outdoors (can carry ticks indoors).

    Prevention Strategies

    1. Avoid Ticks:

      • Walk in trail centers, avoid high grass/leaf litter.

      • Treat clothing/gear with 0.5% permethrin.

      • Use EPA-registered skin repellents (DEET, picaridin).

    2. Tick Checks:

      • Shower within 2 hours of being outdoors.

      • Inspect body thoroughly: armpits, scalp, groin, behind knees.

    3. Landscaping:

      • Keep lawns mowed.

      • Create 3-ft gravel/wood-chip borders between lawns and wooded areas.

      • Discourage deer with fencing.

    4. Prompt Removal:

      • Use fine-tipped tweezers to grasp tick near skin.

      • Pull upward steadily—don’t twist.

      • Clean bite area with alcohol/soap.

    Diagnosis

    • Based on symptoms, tick exposure, and blood tests (two-tiered antibody testing).

    • EM rash alone is sufficient for diagnosis without lab confirmation.

    • Differential diagnosis rules out cellulitis, shingles, or autoimmune disorders.

    Treatment

    • Antibiotics: Doxycycline (adults), amoxicillin (children/pregnant women), or cefuroxime for 10-21 days.

    • Late-stage cases: May require IV antibiotics (e.g., ceftriaxone).

    • Important: Early treatment prevents complications. Antibiotics don’t help “chronic Lyme” (see below).

    Controversy: Chronic Lyme Disease

    “Chronic Lyme” is not a medically accepted term. Some patients report persistent symptoms (fatigue, pain) after treatment, termed Post-Treatment Lyme Disease Syndrome (PTLDS). Research shows prolonged antibiotics are ineffective and risky. Symptoms may stem from autoimmune responses or undiagnosed conditions.

    Prognosis

    Most patients recover fully with early antibiotics. Untreated Lyme can cause arthritis, neurological issues, or heart problems. About 5-20% report lingering symptoms (PTLDS), which often improve over time.

    In Pets and Other Animals

    • Dogs: Can develop fever, lameness, or kidney disease. Vaccines available.

    • Cats: Rarely show symptoms but can carry infected ticks.

    • Horses: May exhibit lameness or neurological issues. No approved vaccine.

    Vaccination Status

    • No human vaccine is currently available (LYMErix was discontinued in 2002).

    • VLA15 candidate vaccine is in Phase 3 trials (expected 2026).

    • Pet vaccines are effective for dogs.

    Geographic Spread

    Climate change and reforestation have expanded tick habitats. High-risk U.S. areas include:

    • Northeast (Maine to Virginia)

    • Upper Midwest (Wisconsin, Minnesota)

    • Northern California

    References

    1. Centers for Disease Control and Prevention (CDC)

    2. Mayo Clinic

    3. National Institute of Allergy and Infectious Diseases (NIAID)

    4. World Health Organization (WHO)

    5. Johns Hopkins Medicine

    6. New England Journal of Medicine

    7. Lancet Infectious Diseases

    8. American Academy of Family Physicians

    9. Environmental Protection Agency (EPA)

    10. European Centre for Disease Prevention and Control (ECDC)

    Disclaimer: This article provides general information and should not replace medical advice. If you suspect Lyme disease, consult a healthcare provider immediately. Untreated Lyme can cause serious complications. Preventative measures are the best defense against infection.

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    and causes causes of Lyme disease disease? english fitness health: how to avoid tick bites illness lyme Lyme disease Lyme disease prevention Lyme disease symptoms Lyme disease treatment prevention symptoms this tick removal tick-borne tick-borne illness প্রভা
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