Where is dog heartworm disease found?

Heart worm infections are a major risk for dogs in all areas throughout the world, with Antarctica being the only exception. Some of the highest incidence of heartworm infections are found in dogs that live within 150 miles of the Atlantic coast from Texas to New Jersey and along the Mississippi River. In these areas, up to 45% of dogs that are not on heartworm preventatives have been found to become infected. While the heartworm infection rate in most other areas is somewhat lower, the heartworm disease still represents a major risk to all dogs in all states of the United States and other countries throughout the world.

Heartworm disease can be found in all areas throughout the world (except Antarctica).