Heartworm Disease in Dogs

images[10]What Is Heartworm Disease?

Canine heartworm disease develops when a dog is bitten by a mosquito carrying microscopic heartworm larvae (juvenile worms) of a parasite called Dirofilaria immitis.

As a mosquito feeds, these microscopic larvae are deposited on the dog and quickly penetrate the skin to begin their migration into the dog’s bloodstream.

Adult heartworms can grow 10-12 inches in length and make their home in the right side of the heart and pulmonary (lung) arteries, often causing lung disease and heart failure.

Adult heartworms can grow 10-12 inches in length.

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