CDC Data Show Weekly ER Visits for Tick Bites Higher than Usual

CDC Data Show Weekly ER Visits for Tick Bites Higher than Usual

CDC Newsroom – Press Materials
CDC Newsroom – Press MaterialsApr 23, 2026

Why It Matters

Rising ER visits signal expanding exposure to tick‑borne pathogens, raising public‑health costs and underscoring the need for stronger prevention campaigns.

Key Takeaways

  • ER visits for tick bites hit 2017 highs nationwide
  • Lyme disease treats ~476,000 patients annually in the U.S.
  • CDC urges EPA‑registered repellent and permethrin‑treated clothing
  • Removing ticks within 24 hours cuts Lyme infection risk

Pulse Analysis

The CDC’s latest Tick Bite Tracker data reveals a notable uptick in emergency‑room visits for tick bites across the United States, reaching levels not seen since 2017. While the South‑Central region remains an outlier, the rest of the country is experiencing a surge that aligns with the onset of peak tick season. This pattern mirrors broader ecological shifts, including warmer temperatures and expanding habitats for tick vectors, which have lengthened the period during which humans are at risk.

Health officials emphasize that the spike in ER visits is a warning sign for potential increases in tick‑borne diseases. Lyme disease remains the most common, accounting for an estimated 476,000 treated cases each year, but other illnesses such as Rocky Mountain spotted fever and the emerging alpha‑gal syndrome also pose serious threats. Prompt removal of attached ticks—ideally within 24 hours—significantly reduces the chance of infection. CDC recommendations focus on personal protection: using EPA‑registered insect repellents, wearing permethrin‑treated clothing, performing regular tick checks, and seeking medical care promptly if symptoms develop.

Beyond individual health, the growing incidence of tick bites carries economic implications. Direct medical costs, lost productivity, and long‑term treatment for chronic conditions can strain healthcare resources. Policymakers and public‑health agencies are urged to amplify education campaigns ahead of Lyme Disease Awareness Month, invest in surveillance tools like the Tick Bite Tracker, and support research into vaccines and novel repellents. Proactive measures now can curb the trajectory of tick‑borne disease burden and protect millions of Americans during the expanding tick season.

CDC Data Show Weekly ER Visits for Tick Bites Higher than Usual

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