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 AVOIDING TICKS: A GUIDE FOR STAYING SAFE





Ticks aren’t just annoying—they’re carriers of some pretty nasty diseases that are turning up more and more often. Thanks to changes in climate, how we use land, and people spending more time in areas where ticks live, cases of tick-borne illnesses are on the rise worldwide (Clinical Microbiology Reviews; Frontiers in Cellular and Infection Microbiology). If you spend time outdoors, knowing how these diseases spread—and how to avoid getting bitten—is becoming essential.

A Surge in Tick-Borne Diseases and Bites: The Numbers

Tick-borne diseases are climbing fast—and the data is striking. In the United States, emergency room visits for tick bites are currently at their highest weekly rates since 2017, with an estimated 31 million people (nearly 1 in 10 Americans) experiencing a tick bite each year (CDC; PubMed; ABC10). Lyme disease, the most common tick-borne illness, has seen a dramatic increase: reported cases in the U.S. nearly doubled from 34,945 in 2019 to 62,551 in 2022 (Statista), and the CDC estimates that over 476,000 Americans are diagnosed and treated for Lyme disease each year (CDC).

Globally, tick-borne diseases pose a major public health threat, with an estimated economic burden of $14–19 billion annually in developing countries (Frontiers in Tropical Diseases). Climate change and shifting landscapes are expanding tick habitats, pushing these numbers higher each year (BlueDot).

What’s more, the trend is expected to continue. For example, rates of babesiosis—a tick-borne parasitic disease—rose by an average of 9% annually in the U.S. between 2015 and 2022 (Penn State Health News). In Canada, reported tick-borne disease cases grew by more than 20% in 2024 alone (Canada Health Infobase).

The message is clear: ticks and the diseases they carry are not just a local nuisance—they’re a fast-growing global health issue.

Types of Ticks: What You Need to Know

Not all ticks are equally dangerous, and a lot depends on the specific species in your area. Here are a few of the most important ticks you’re likely to encounter, and what makes each one tick—literally and figuratively.

  • Blacklegged Tick (Ixodes scapularis): Also known as the deer tick, this species is notorious for spreading Lyme disease, anaplasmosis, and babesiosis in the eastern and upper midwestern U.S. Adult females are reddish-brown with a dark, almost black “shield” near the head, while nymphs are tiny and harder to spot. Blacklegged ticks are most active in spring and fall, and they prefer moist, wooded environments. They latch onto small mammals and birds as larvae and nymphs, then onto deer and humans as adults (CDC; Clinical Microbiology Reviews).

  • Western Blacklegged Tick (Ixodes pacificus): Found mostly on the West Coast, this tick spreads Lyme disease and anaplasmosis. It looks similar to its eastern cousin but prefers grassy or shrubby areas near the coast and in oak woodlands (CDC).

  • American Dog Tick (Dermacentor variabilis): This is the classic “wood tick” found across much of the U.S. east of the Rockies. It’s larger than deer ticks, with ornate white or silver markings on its back. The American dog tick is the main vector for Rocky Mountain spotted fever and tularemia. Adults are most active in spring and early summer, and they prefer grassy fields and trails where dogs and humans pass by (British Journal of General Practice).

  • Lone Star Tick (Amblyomma americanum): Named for the single white spot on adult females’ backs, the lone star tick is aggressive and quick-moving. It’s found mostly in the southeastern and eastern U.S. and has been expanding its range northward. This tick can transmit ehrlichiosis, tularemia, and the so-called “alpha-gal” allergy—a reaction to red meat after a bite (Frontiers in Cellular and Infection Microbiology).

  • Brown Dog Tick (Rhipicephalus sanguineus): Unlike most ticks, this species lives and breeds indoors, often in kennels or homes with dogs. It prefers feeding on dogs but will bite humans in heavy infestations. It’s a major vector for canine diseases and can transmit Rocky Mountain spotted fever in the southwestern U.S. (CDC).

  • Soft Ticks (Ornithodoros species): Most people never see these ticks. They’re squatter and rounder than hard ticks, and they typically feed on birds or small mammals. Soft ticks transmit relapsing fever and usually feed at night, often for less than an hour (Annual Review of Entomology).

Tick Characteristics and Behaviors

Ticks are patient hunters. Instead of jumping or flying, they “quest”—climbing to the tip of a blade of grass or a branch and waiting, with their front legs outstretched, to grab onto a passing host. They’re attracted by body heat, movement, and even the carbon dioxide we exhale. Some, like the lone star tick, actively crawl toward their targets, while others wait for something to brush against them (British Journal of General Practice).

Once attached, ticks can feed for several days, burrowing their mouthparts into the skin and releasing saliva that numbs the site and suppresses the host’s immune response. This slow feeding is what makes them such effective vectors for disease: the longer they’re attached, the greater the risk of infection (CDC; Clinical Microbiology Reviews).

How Do Ticks Spread Disease?

Ticks aren’t in a hurry. They latch onto a host’s blood for hours, sometimes for days. During this time, if they’re carrying a disease, germs in their saliva can make their way into your bloodstream. The odds of getting sick depend on a few things: how many ticks are around, how many of them are infected, and how long a tick stays attached to you (British Journal of General Practice).

How To Avoid Tick Bites

The best way to steer clear of tick-borne illness is to avoid getting bitten in the first place. Research shows that combining personal protection with smart management of your environment works best:

  1. Dress Smart: Wear long sleeves and long pants tucked into your socks when you’re out in the brush. Light-colored clothes make it easier to spot ticks before they latch on. For extra peace of mind, use clothing that’s treated with permethrin, a tick-repelling chemical (British Journal of General Practice).

  2. Use Repellents: Apply EPA-approved insect repellent to exposed skin—look for products containing DEET, picaridin, or IR3535. They’ve all been shown to keep ticks away (Journal of Travel Medicine).

  3. Do Tick Checks: After spending time in wooded or grassy areas, check yourself carefully. Don’t forget the easy-to-miss spots: behind your knees, in your groin, under your arms, and along your hairline. If you find a tick, grab it with fine-tipped tweezers close to your skin and pull it out straight—don’t twist (MEDICINE TODAY).

  4. Manage Your Environment: Keep your lawn trimmed, clear away brush, and create barriers between the woods and your yard or play areas. In high-risk areas, some experts recommend targeted use of tick pesticides, but only after weighing environmental impacts (Annual Review of Entomology).

  5. Spread the Word: Public education makes a big difference. When people understand where ticks live, what symptoms to watch for, and how to prevent bites, they’re more likely to protect themselves. Still, studies show that even when people know the risks, they don’t always take precautions every time (Asia Pacific Allergy).

Takeaway

Tick-borne diseases are a growing problem, but you don’t have to be a victim. Consistency is key: protect your skin, use repellents, check for ticks after being outdoors, and keep your yard tidy. Public health programs need to keep pushing education, monitoring, and better control strategies (Annual Review of Entomology; Clinical Microbiology Reviews). If you’re spending time outside, make tick awareness part of your routine—it’s the easiest way to keep yourself (and your family) healthy.

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