Pet owner Cheryl Smith describes the devastating effects of heartworm disease on her dogs and family in this video. Heartworm disease is almost 100 percent preventable but over 130,000 dogs test positive for heartworm disease each year. Read more about how to prevent heartworm here.

The monthly forecast maps on Pet Disease Alerts can help you determine the risk to your pets whether you stay at home or travel with your pets. Ask your veterinarian about testing and protection for your pet against heartworm.