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In the News

The American Heartworm Society is the leading resource on heartworm disease, and our mission is to lead the veterinary profession and the public in the understanding of this serious disease. Every year, hundreds of stories are written on the diagnosis, prevention and treatment of heartworm, as well as on the plight of affected pets. These stories are an important way of reaching both veterinary professionals and pet owners with information they need to know about heartworm disease.

The American Heartworm Society is led by a board of directors comprised of veterinarians and specialists in the fields of veterinary parasitology and internalmedicine. As leaders in the fight against heartworm disease, they are available as resources and authors of related stories.

Members of the media are encouraged to contact the American Heartworm Society for information, visuals and interviews about heartworm disease. Please contact Sue O’Brien at or call 319-231-6129. All other inquiries, please email:



News & Alerts

(Appeared on BusinessWire)

The American Heartworm Society reminds pet owners to stay in the heartworm-prevention habit, no matter what the season. Contrary to what owners may think, heartworm disease is a year-round threat.

(Appeared at

An increased emphasis on the importance of heartworm prevention, as well as new scientific information about heartworm resistance, testing and treatment, have prompted the American Heartworm Society (AHS) to revise its guidelines for dogs and cats. The updates to the guidelines were announced during the AHS’s half-day symposium at the North American Veterinary Conference earlier this week.

In certain areas of the United States, most notably the Mississippi Delta region, an inordinate number of dogs have become infected with heartworms while reportedly taking preventive medication. Practitioners diagnosing these unexpected heartworm infections have begun to question the effectiveness of macrocyclic lactones.

The FDA joins the American Heartworm Society in recommending that all dogs and cats, including indoor pets, be placed on year-round heartworm preventatives.

Read More.

Disease potential increases with mild winter and early spring.

Released from the American Heartworm Society Urge Year-Round Prevention

Veterinary professionals can tap online resources to remind and educate clients about the value of heartworm prevention.

Veterinary experts troubled by high incidence of preventable disease

Persistence of Heartworms Calls for Veterinary Vigilance About Protection

Survey finds heartworm nationwide

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