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HOSA Health Education · Pennsylvania

Know
Lyme
Disease

A community health guide for parents and families — covering detection, removal, symptoms, and early treatment of tick-borne Lyme disease.

Learn the Essentials
70–80% show bull's-eye rash
#1 Pennsylvania leads the nation
3 days earliest symptom onset

What Is
Lyme Disease?

Lyme disease is caused primarily by the Borrelia burgdorferi bacteria, transmitted to humans through the bite of the black-legged tick (deer tick). These ticks are tiny and often go unnoticed.

Lyme disease is most common in summer months — particularly in wooded or grassy areas — but transmission can occur at any time of year. Early detection is critical, as untreated cases can progress through three increasingly serious stages.

🦟
Borrelia burgdorferi bacteria
Stages of Infection

Three Stages
of Lyme Disease

Early
01
Early Localized Disease
3 days – 1 month after bite
  • Bull's-eye rash (Erythema migrans) in 70–80% of patients
  • Fever and chills
  • Fatigue and headache
  • Muscle and joint pain
  • Swollen lymph nodes
Moderate
02
Early Disseminated Disease
3–10 weeks after bite
  • Multiple rashes spreading to other body areas
  • Bell's palsy — partial facial paralysis
  • Lyme carditis — irregular heart rhythm
  • Numbness or weakness in hands and feet
  • Eye pain and visual disturbances
  • Neuroborreliosis — brain/spinal cord inflammation
Severe
03
Late Disseminated Disease
2–12 months after bite
  • Severe arthritis, especially in knees
  • Acrodermatitis chronica atrophicans (skin condition)
  • Skin thinning and nail deformity
  • Peripheral neuropathy and nerve damage
  • Chronic cognitive impairment
How to Stay Safe

Prevention
Strategies

🌲

Avoid High-Risk Areas

Ticks thrive in wooded areas, tall grass, and leaf litter. Walk in the center of trails and avoid brushing against vegetation when possible.

🧴

Use Insect Repellent

Apply EPA-approved repellents containing DEET, picaridin, or IR3535 on exposed skin and clothing before going outdoors.

👕

Wear Protective Clothing

Long sleeves and pants help keep ticks off your skin. Light-colored clothing makes ticks easier to spot. Tuck pants into socks when hiking.

🔍

Do Thorough Tick Checks

After time outdoors, check your entire body carefully — including scalp, behind ears, armpits, groin, and behind the knees. Check children and pets too.

🐕

Check Your Pets Daily

Pets carry ticks indoors. Check dogs and cats daily, especially after outdoor time, and use vet-recommended tick prevention products.

👔

Wash Exposed Clothes

After outdoor activities in tick-prone areas, tumble-dry clothes on high heat for 10 minutes to kill any ticks before washing.

If You Find a Tick

Proper Tick
Removal

🥄

Use Fine-Tipped Tweezers

Grasp the tick as close to the skin's surface as possible. Do not use fingers — tweezers give you control and reduce the risk of squeezing the tick's body.

⚠ Never use petroleum jelly, nail polish, or heat to remove a tick.
⬆️

Pull Upward Steadily

Apply even, upward pressure without twisting or jerking. Slow, steady tension prevents the mouthparts from breaking off and remaining in the skin.

⚠ Do not twist — this can cause mouthparts to break off.
🧼

Clean the Area

After removal, thoroughly clean the bite area with rubbing alcohol, iodine scrub, or soap and water. Wash your hands as well.

📋

Monitor & Document

Save the tick in a sealed bag for identification. Watch for symptoms — especially rash — over the next 30 days. Consult a doctor if any signs develop.

Medical Response

Diagnosis
& Treatment

How Lyme Is Diagnosed

Clinical Evaluation Doctors look for the bull's-eye rash, known tick exposure, and symptom patterns consistent with Lyme disease.
Blood Tests (ELISA) An enzyme-linked immunosorbent assay (ELISA) detects antibodies to Borrelia burgdorferi in the bloodstream.
Western Blot Confirmation If the ELISA is positive, a Western blot test confirms the diagnosis by identifying specific antibody bands.
Symptom Timeline The timing of symptom onset relative to potential tick exposure is critical for accurate diagnosis and staging.

Early Treatment — Highly Effective

Oral antibiotics such as doxycycline or amoxicillin for 10–14 days are highly effective when started early. Most patients recover fully.

Advanced Stages — Extended Antibiotics

Later-stage Lyme may require longer courses or IV antibiotics (ceftriaxone) to address heart, neurological, and joint involvement.

Supportive Care for Chronic Symptoms

Physical therapy, anti-inflammatories, and supportive care help manage joint pain and fatigue in prolonged cases.

⚠️

Post-Treatment Lyme Disease Syndrome

Some patients develop PTLDS — persistent fatigue, joint pain, and cognitive difficulties — even after successful antibiotic treatment. Most recover within a month; additional antibiotics provide little benefit for PTLDS.

#1

Pennsylvania consistently leads the nation in reported Lyme disease cases. If you live here, awareness and prevention aren't optional — they're essential.