What dogs are high risk for heartworm?

Lavada Braun
2025-07-30 16:22:42
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: 14
Every dog, from the tiniest Chihuahua to the towering Great Dane, is at risk of heartworm disease. Geography plays a role, with areas having high mosquito populations seeing more cases. However, no state in the U.S. is heartworm-free. Any dog, regardless of age, breed, or living conditions, can get heartworm disease if an infected mosquito bites them. Yes, even indoor dogs are at risk. All dogs, regardless of their lifestyle or location, should be on heartworm prevention and should be tested annually because no preventive method is 100% foolproof.
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