Lone Star tick, known to cause red meat allergy, found in northern Wisconsin: report

By | June 29, 2019

The Lone Star tick, a type of tick that’s known to cause some people it bites to develop an allergy to red meat, has reportedly been found in northern Wisconsin — a rare occurrence as these small arachnids aren’t typically found in the state. 

The tick was purportedly spotted near Eau Claire County, per local news Channel 3000. Lone Star ticks, which are not native to the state and are named for the white spot on the back of adult females, are sometimes reported in the southern half of Wisconsin, if at all, according to the Department of Entomology at the University of Wisconsin-Madison.

Susan Paskewitz, the chair of the Entomology Department at the university, told Channel 3000 the Lone Star tick reported likely found its way north by attaching itself to a bird or other animal that later made its way to the area.

Last summer, Scott Commins — an allergist and associate professor of medicine at University of North Carolina, Chapel Hill and one of the first physicians to discover the connection between Lone Star tick bites and the alpha-gal meat allergy —  told Fox News the allergy caused by a Lone Star tick bite is relatively rare. That said, the number of cases has sharply increased from the roughly two dozen he and his colleagues first studied in 2009.


Commins offered a few different reasons for the increase.

First, doctors can now perform a blood test that detects the allergy, “which has made the diagnosis much easier,” he said.

Additionally, the “range of the Lone Star tick is increasing and expanding,” Commins said, which ultimately increases the chance of getting bitten. Higher costs of living could partly be to blame, causing more people in recent years to trade urban life for the suburbs. This movement results in closer contact with tick-carrying deer, which subsequently increases the chance for tick bites.

Commins also said a heightened awareness about the allergy has led those with symptoms to talk to their doctor and investigate if a Lone Star tick bite could be the cause.

Though it’s not totally clear how Lone Star tick bites sometimes result in a meat allergy, Commins said the tick’s salvia may be a factor.

“There’s a common pathogen in all of these ticks,” he said at the time.  “It could be a protein or enzyme in tick spit. We’re working on that in the lab at the moment.”

Not unlike the symptoms of a peanut, egg, tree nut or a shellfish allergy, many people who are allergic to red meat may experience hives, a skin rash or anaphylaxis.

Commins warned many also experience “severe GI [gastrointestinal] distress,” such as stomach pain, indigestion, vomiting and diarrhea. Some people have described their gastrointestinal symptoms as “stabbing pain or [being stuck with] a hot poker,” he added.


That said, the symptoms of a red meat allergy are not always immediate. In fact, Commins said, it usually takes hours after eating red meat for the symptoms to appear.

There is no cure for the allergy at this time; the most those with the allergy can do is to avoid red meat, which includes beef, lamb, pork, veal, and goat, among others.

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But the news isn’t all bad.

“There is a bright spot in this; this is one of these food allergies that will resolve over time,” he said, though he noted additional tick bites may prolong the condition.

FOX News