Signs of Heartworm disease can be subtle and difficult to detect until its later stages. As the disease progresses, signs begin to appear. Contact your veterinarian immediately if you notice coughing, difficulty breathing, sluggishness, and less energy for exercise in your dog. Adult Heartworms cause serious harm to your dog's heart, lungs, and certain internal organs. Left untreated, Heartworm disease can result in loss of consciousness and death.

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