Heartworms are parasites that grow in the heart and lungs of animals. If left untreated, they can cause organ damage and failure. Despite available preventative meds, a recent study shows a rise in heartworm cases across the U.S.

The American Heartworm Society (AHS) and Companion Animal Parasite Council (CAPC) conducted the study in question. In 2016, the AHS released a survey to veterinary clinics nationwide and asked veterinarians about the number of heartworm cases they received. Since 2013, there has been a 21.7% increase in the average number of heartworm cases.

No state was completely cleared of heartworm. While some states, particularly the southeastern U.S., are more likely to have cases of heartworm, the risk exists everywhere. Look into getting your dog protected from heartworm today.


Rehm, Christopher J. “AHS Survey Finds Increase In Heartworm Cases.” American Heartworm Society, 10 Apr. 2017, www.heartwormsociety.org/veterinary-resources/veterinary-education/ahs-board-speaks-out/368-ahs-survey-finds-increase-in-heartworm-cases.

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