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Vector-Borne Diseases

Diseases like Lyme disease and West Nile Virus are vector-borne diseases because they can spread through infected tick and mosquito bites. Protecting yourself is easy when you follow a few simple steps.

How can you prevent mosquito and tick bites?

Take these steps to protect yourself and your family:

  • Use insect repellent: Follow the label directions.

  • Wear protective clothing: Cover up with long-sleeved shirts, pants, and closed-toe shoes, especially in wooded or grassy areas.

  • Check for ticks after being outside: Examine your body and pets for ticks. Pay close attention to hidden areas like your neck, underarms, and behind your knees.

  • Shower after outdoor activities: A quick shower can help wash off ticks that haven’t attached yet.

  • Reduce mosquito habitats: Dump out standing water from flowerpots, birdbaths, and outdoor toys to stop mosquitoes from breeding.

What should you do if you’re bitten?

For tick bites:

  • Remove the tick safely: Use tweezers to grab it close to your skin. Pull straight out without twisting.

  • Wash the area: Clean the bite with soap and water or rubbing alcohol.

  • Keep the tick: Place it in a small container or bag in case it needs identification.

  • Monitor for symptoms: Watch for fever, chills, or a bull’s-eye rash. Contact your doctor if you notice these or feel unwell.

For more information, please view our Ticks and Lyme Disease page.

For mosquito bites:

  • Ease the itch: Apply a cold compress or calamine lotion to reduce discomfort.

  • Watch for symptoms: If you develop fever, headache, or body aches, see your doctor right away.

For more information, please view our West Nile Virus page.

Frequently asked questions

Mosquito bites usually cause itchy bumps, while tick bites might not hurt or itch at first. If a tick is attached to you, you’ll see it on your skin.

You should contact a doctor if:

  • You have a rash, fever, or flu-like symptoms after a tick bite

  • You feel unwell after a mosquito bite, especially with fever or aches


What should I do next?

  • Check yourself and your family for ticks after being outside

  • Use insect repellent and wear protective clothing

  • Watch for symptoms after bites and contact your healthcare provider if needed

  • Visit Ticks and Lyme disease or Mosquitoes and West Nile Virus for more details

Contact Us

Southwestern Public Health (8:30 a.m. - 4:30 p.m., Monday - Friday)

St. Thomas Site
(Administrative office)
1230 Talbot Street
St. Thomas, ON N5P 1G9

Woodstock Site
410 Buller Street
Woodstock, ON N4S 4N2

Call us toll free: 1-800-922-0096
Email us

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