The 2026 tick season is officially the worst in nearly a decade. New CDC surveillance data from the United States shows emergency-room visits for tick bites in April 2026 reached their highest level for this time of year since 2017 — 104 per 100,000 ER visits, up more than 25% from 68 the year before. In the US Northeast, the rate tripled in a single month, jumping from 52 per 100,000 in March to 163 in April. In Connecticut, roughly 40% of ticks submitted for testing carried the bacteria that cause Lyme disease.
Those numbers made headlines across Axios, Healthline, PBS and UPI this spring. The data is American — but the drivers behind it are not.
Why this matters in Europe too
The same conditions pushing US tick numbers to record levels — milder winters, longer warm seasons, expanding tick habitats — are at work across Europe:
- Europe already carries a heavy tick-borne disease burden. An estimated 200,000–300,000 cases of Lyme borreliosis occur across Europe every year, transmitted mainly by the castor bean tick (Ixodes ricinus).
- Tick season is stretching. In Scandinavia, warming winters mean ticks are active earlier in spring and later into autumn than they used to be.
- Tick ranges are expanding. Species like the ornate meadow tick (Dermacentor reticulatus) are established in areas where they were absent 20 years ago, and tick-borne encephalitis (TBE) is spreading westward across Europe.
If you hike, garden, camp, walk your dog, or work outdoors in Europe, this season deserves more caution than usual — not less time outside.
What a record season means in practice
More active ticks means more encounters per hour spent in tick habitat — woodland edges, tall grass, bracken, leaf litter, and even urban parks. The tick life stage responsible for most human infections, the nymph, is about the size of a poppy seed and easy to miss. In a high-density year, the odds of picking one up without noticing go up with every outing.
The good news: tick bites are among the most preventable outdoor risks there are. Ticks don't jump or fly — they wait on vegetation and crawl looking for skin access. Deny them that access and you've removed almost all of the risk.
Six things to do differently in a record tick year
- Use a physical barrier. The most reliable chemical-free protection is fabric ticks can't get under or through. A full-body mesh protection kit worn over your clothes seals off skin access entirely — no sprays, no reapplication, no wash-out limit.
- Tuck everything in. Trousers into socks, shirt into trousers. It looks odd. It works — it forces ticks onto the outside of your clothing where you can spot them.
- Stay on the middle of the trail. Ticks quest from vegetation at trail edges and in tall grass. Centre of the path = minimal contact.
- Do a full-body tick check after every outing. Hairline, behind the ears, armpits, groin, behind the knees, between the toes. In a season like this one, make it a routine, not an afterthought.
- Remove any attached tick immediately — and correctly. Use fine-tipped tweezers or a tick removal tool: grasp close to the skin, pull straight out with steady pressure. No twisting, no squeezing, no petroleum jelly, no heat.
- Monitor for 30 days after any bite. An expanding red rash, fever, headache, or unusual fatigue after a tick bite warrants a doctor's visit. Early treatment for Lyme disease is highly effective.
Don't cancel your summer — protect it
A record tick season is a reason to prepare, not a reason to stay indoors. The forests, trails and campsites are still worth it. With a physical barrier, a removal tool in your pack, and a tick-check habit, you can walk into the worst tick season in a decade with genuine confidence.
Related: European tick species guide | Lyme disease symptoms | How to remove a tick safely | TBE vaccination guide