Why Annual Heartworm Tests Are Essential for Dogs in Ohio
Even if your dog takes heartworm prevention, an annual test is non-negotiable. Why? Because prevention isn’t perfect, and Ohio’s mosquito activity means your dog could still be at risk.

Keep your pet healthy this fall with CAMC’s seasonal checklist.
What a Heartworm Test Does
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Detects hidden infections before symptoms show
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Confirms your prevention plan is effective
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Helps avoid severe organ damage
What Happens if You Skip?
Heartworm disease is often silent until it’s advanced. At that point, treatment is expensive, risky, and stressful for your pet. Catching it early through testing can literally save your dog’s life.
The Ohio Risk Factor
Mosquitoes don’t disappear in fall. Our region stays warm enough for them to remain active, making October a key time to double-check your dog’s protection.
