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Looking for information or educational tools on heartworm management? Our NEW Heartworm Resource Center makes it easy to get the answers or assets you’re looking for. You may search/filter by one or more of the fields below.



Grounded or Unfounded: All drugs that prevent parasites prevent heartworm infection.

Treating your pet for parasites? Read the label and make sure it covers heartworms!

Category: Grounded/Unfounded Series Posters
Canine | Prevention | Veterinary Professionals | Pet Owners

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Frequently Asked Questions on Heartworm Treatment in Shelters

When should we perform spay-neuter surgery in a heartworm-positive dog?

Category: Shelter Resources

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Shelter Educational Brochures

New from AHS and the Association of Shelter Veterinarians: Educational Brochures on Heartworm for People Adopting from a Shelter

Category: Shelter Resources
Canine | Prevention

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Why Should I WORRY About HEARTWORMS?

Here's what dog, cat and ferret owners need to know about heartworms and how their pet can get them--as well as why they should opt for safe and easy heartworm prevention.

Category: Slide Shows
Canine | Feline | Prevention | Life Cycle | Exotics | Shelters | Veterinary Professionals | Pet Owners | Incidence

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Can heartworms be prevented naturally?

Many pet owners want "natural" solutions to heartworm prevention and treatment in their pets. The American Heartworm Society provides the facts.

Category: Slide Shows
Canine | Feline | Prevention | Exotics | Veterinary Professionals | Pet Owners

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5 Simple Steps to Keep Your Pet Happy for the Holidays

Five veterinary experts weigh in on keeping pets happy during the holidays.

Category: Slide Shows
Canine | Feline | Prevention | Veterinary Professionals | Pet Owners

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Mosquitoes, Heartworms and Pets OH MY

Learn why you should protect your pets from deadly heartworm disease, which is spread by mosquitoes.

Category: Slide Shows
Canine | Feline | Prevention | Life Cycle | Shelters | Veterinary Professionals | Pet Owners | Cost | Incidence

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12 Reasons to Protect Your Pet 12 Months a Year

Not ONE reason but 12 reasons pets need year-round heartworm protection.

Category: Slide Shows
Canine | Feline | Prevention | Treatment | Life Cycle | Exotics | Shelters | Veterinary Professionals | Pet Owners | Cost | Incidence

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True or False: Test Your Heartworm Knowledge

Test your knowledge about diagnosis, prevention and treatment of heartworm disease in dogs and cats.

Category: Slide Shows
Canine | Feline | Prevention | Diagnosis | Treatment | Life Cycle | Exotics | Shelters | Veterinary Professionals | Pet Owners | Cost | Incidence

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The Deadly Truth: Heartworm Disease in Cats

Heartworm in cats can be deadly BUT it can be prevented.

Category: Slide Shows
Feline | Prevention | Treatment | Life Cycle | Shelters | Veterinary Professionals | Pet Owners

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5 Facts Every Pet Owner Should Know About Heartworm Disease

The five basic facts every pet owner needs to know about heartworm disease.

Category: Slide Shows
Canine | Feline | Prevention | Life Cycle | Shelters | Veterinary Professionals | Pet Owners | Incidence

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Updated COVID-19 Recommendations (October 2020)

Updated guidance on returning to normal protocols for heartworm prevention, testing, and treatment as COVID-19 mitigation measures were relaxed.

Category: Special Circumstances Guidance
Canine | Feline | Prevention | Treatment

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COVID-19 AHS Recommendation (April 2020)

Guidance on handling deviations from heartworm prevention, testing, and treatment necessitated by practice changes during the initial weeks and months of the COVID-19 pandemic.

Category: Special Circumstances Guidance
Canine | Feline | Prevention | Treatment

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Heartworm Preventive Waiver

Client declining recommended heartworm prevention or testing? This hold-harmless waiver may help change their mind.

Category: Special Circumstances Guidance
Canine | Feline | Prevention | Veterinary Professionals | Pet Owners

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Bringing the 17th Triennial Heartworm Symposium to You

This Q&A provides highlights from 2022 AHS Triennial Heartworm Symposium speakers and moderators on leading issues presented and discussed at the conference.

Category: Triennial Symposium
Canine | Feline | Prevention | Diagnosis | Treatment | Life Cycle | Shelters | Veterinary Professionals | Incidence | Transport of Infected Pets | Resistance

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Triennial Symposium Proceedings

Since the establishment of the American Heartworm Society in 1974, a symposium has been held every three years for the purpose of presenting the latest research on heartworm disease, diagnosis, and prevention. Presenters at each symposium come from all over the world.

Category: Triennial Symposium
Canine | Feline | Prevention | Diagnosis | Treatment | Exotics | Other | Veterinary Professionals

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Triennial Symposium

Category: Triennial Symposium
Canine | Feline | Prevention | Diagnosis | Treatment | Exotics | Other | Veterinary Professionals

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Was that a MOSQUITO?

In this video reel, a cat runs in fear from a mosquito that might be carrying heartworms

Feline | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

Just checking in!

In this video reel, a cat checks in on his owner about giving heartworm prevention

Feline | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

There's no running--or skating--away from heartworms!

In this video reel, a skateboard dog explains that he can't run fast enough to hide from heartworms

Canine | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

I'm fresh, clean and heartworm-free!

In this video reel, a bathing cat feels fresh and clean, thanks to heartworm prevention

Feline | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

Life's a breeeeeeze with heartworm prevention!

In this video reel, a fluffy dog equates heartworm prevention with a carefree life

Canine | Prevention | Shelters | Other | Veterinary Professionals
Category: Video

High five for heartworm protection!

In this video reel, a dog shares a "high five" with her owner for protecting her from heartworm infection

Canine | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

Heartworm protection is better than a belly rub.

In this video reel, a happy dog shows love for the owner who protects him from heartworm infection

Canine | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video

Heartworm protection makes me happy (cats)

In this video reel, a content cat show love for the owner who protects him from heartworm infection

Feline | Prevention | Shelters | Veterinary Professionals | Pet Owners
Category: Video


The colors are changing but your clients’ heartworm prevention programs shouldn’t. To help spice up your client outreach programs this fall, the AHS has created a new set of posters you can print or post on your social pages.

To keep this message front and center with your clients, we’re sharing a set of new posters you can print OR post on your Facebook or Instagram page.

  • To save or print a poster, just click on the image below, then click on the “download” button and save the PDF file.
  • To save a poster for use on your social pages, simply open the downloaded poster, then right click on the file and follow the menu instructions to save the file as a JPEG image.

For more client tools, be sure to visit the Resource Center. And if you don’t already, make sure you’re sharing our Facebook and Instagram posts!