Get information on diseases that ticks spread in La Crosse County and how to prevent them.
We track illnesses caused by tick bites in La Crosse County. While we do not identify ticks, there are organizations that do.
Why are we concerned about ticks?
There are a number of illnesses spread by ticks in Wisconsin that are spread by bites from infected ticks. These diseases are common. Not all ticks spread disease and you won't get sick from all tick bites.
Ticks are most active in spring, summer, and early fall. These are the times when people are outside a lot and could be bitten. Wisconsin winters are becoming milder. This creates a longer active tick season and increases your chance of getting a tickborne disease.
How ticks spread disease
Most tickborne diseases in Wisconsin are spread by the black-legged tick, also known as the deer tick. Deer ticks are very small (nymphs are the size of a poppy seed and adults are the size of a sesame seed.)
Ticks feed by biting skin. While they are attached to skin, disease can be spread. Once attached, they usually feed for 3-5 days. Usually it is the nymphs and adult females that spread most tickborne diseases.
Ticks live in natural areas with trees, bushes, or high grass. They can't jump or fly. They crawl onto you or your dog when you brush against leaves or grass.
Tickborne illness and symptoms
Early symptoms of tickborne diseases can happen from 3 to 30 days after a bite from an infected tick. Lyme disease often starts with a rash that looks like a bullseye around or near the tick bite. Not everyone gets that kind of rash, and sometimes you do not even see a tick on your body. If you do see a bullseye rash, call your healthcare provider.
Symptoms of tickborne illness include:
If you've spent time outside and have symptoms, talk to your healthcare provider, even if you haven't seen a tick on your body or a rash. You should have a complete recovery if you start antibiotics as soon as possible. If tickborne diseases are not treated, they can be serious and sometimes fatal, even in healthy people.
What you can do to prevent tick bites
Preventing tick bites is the best way to stay healthy.
Ticks and pets
Dogs are very susceptible to tick bites and the diseases they cause. Tick prevention products should be used on dogs regularly and do tick checks daily. Remove the tick right away. If a tick comes into the house on a dog, it could bite another pet or person living in the house.
Tick bites on dogs can be hard to spot. Look for ticks:
Symptoms of tickborne diseases may take 7 to 21 days to show. Call your vet if your dog has behavior or appetite changes.
Cats are very sensitive to tick prevention products. Talk to your vet before using them.
Health Department Office Location
2nd Floor, 300 4th St. N.
La Crosse, WI 54601
Main Business Phone: 608-785-9872
Email: [email protected]
In a public health emergency call 911
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Office Hours: 8:00am to 4:30pm Monday-Friday; some service hours may vary