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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 This email is for media inquiries only. All other inquiries, please email:



News & Alerts

Virbac Strengthens Ties to Heartworm Society

(Appeared in Veterinary Practice News)

Sponsors of the American Heartworm Society help the organization pay for research and education.

American Heartworm Society opts to fund independent research

(Appeared in DVM360 Magazine)

Veterinary parasitology organization identifies need for more answers, solicits research proposals.

Citing the need to better understand critical issues such as macrocyclic lactone resistance to heartworm preventives and the role of the immune system in heartworm prevention, the American Heartworm Society (AHS) has announced that it is accepting proposals for new heartworm research studies.

Heartworm Group Plans $200,000 in New Research

(Appeared in Veterinary Practice News)

The American Heartworm Society is accepting study applications in a move to expand what is known about heartworm disease.


American Heartworm Society Solves Holiday Dilemma for Cat Owners

Wilmington, Delaware—Here’s a message for cat owners wondering what to get their favorite feline this holiday: give the gift of heartworm protection.

“Cat toys and treats are great gifts, but heartworm prevention is something no cat should be without,” declares veterinarian and American Heartworm Society President Dr. Stephen Jones. “It’s easy and affordable—and it can save a cat’s life.”

Feline Heartworm Detection Continues

(Appeared in Parasites & Vectors)

First epidemiological report of feline heartworm infection in the Barcelona metropolitan area (Spain)

The metropolitan area of Barcelona is the most densely populated metropolitan area on the Mediterranean coast. Several studies have reported the presence of canine heartworm disease in this region; however, there are no published epidemiological data regarding feline heartworm in this region and the prevalence in this species remains unknown. 

Is There a New Heartworm Vector in Town?

The Los Angeles Vector Control recently announced that a mosquito species from Australia has been found in southern California. The species is the Aedes notoscriptus, also known as the "Aussie Mozzie,” and it was previously undocumented in the U.S. This discovery is of interest to veterinarians and pet owners because of the mosquito’s ability to vector heartworm in the U.S., should it become prevalent.

Alabama, Louisiana Lead Nation in Heartworm Disease

(Appeared in Veterinary Practice News)

Monthly medication can stop heartworm disease from taking hold in dogs, the American Heartworm Society notes.

Blame mosquitoes first, but dog owners share responsibility for Alabama having the highest rate of heartworm disease in the nation in 2013, the American Heartworm Society reported Wednesday.


Heartworm Incidence: Map It Out

Every three years, the American Heartworm Society (AHS) gathers data on heartworm testing to understand the impact heartworm is having nationwide, as well as in specific regions. Testing data from thousands of veterinary practices and shelters is used to create a detailed map showing the average number of heartworm-positive cases per clinic.

The new map, which reflects data from the 2013 calendar year, shows that heartworm is widespread in many areas of the country. Download it today and check out the incidence of heartworm in your practice area. You can also compare the 2013 map to past maps from 2001-2010.

New Heartworm Life Cycle Diagrams Released

A Picture is Worth a Thousand Words About Heartworm.

A clear understanding of the heartworm life cycle is vital in getting clients on board with year-round prevention, and pet owners who understand the rationale for your heartworm prevention and treatment recommendations are more likely to comply. Understanding, however, may require more than a verbal explanation of how heartworms are transmitted and develop.

Your Walls Will Talk — New Posters Promote Prevention During Heartworm Awareness Month

It's spring, and your schedule is booked with patients getting their annual exams, heartworm tests and heartworm prescription renewals.

And because April is also Heartworm Awareness Month, it's a prime opportunity to promote the importance of year-round protection for both dogs and cats. A new series of posters from the American Heartworm Society (AHS) uses compelling images and messages to remind pet owners that providing heartworm prevention is one of the most important—and most loving—things they can do for their pets.

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