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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.

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: Posters
Canine | Prevention | Veterinary Professionals | Pet Owners

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American Heartworm Society

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

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?

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?

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

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

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

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

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

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

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 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)

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

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

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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American Heartworm Society

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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American Heartworm Society

Triennial Symposium

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

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Heat treatment of serum samples in heartworm testing

Parasitologist Dr. Byron Blagburn explains what veterinarians need to know about heat treatment of serum samples in heartworm testing.

Canine | Diagnosis | Veterinary Professionals
Category: Video

Heat treatment of feline serum samples

Parasitologist Dr. Byron Blagburn explains what veterinarians need to know about heat treatment of serum samples when testing cats for heartworm infection.

Feline | Diagnosis | Veterinary Professionals
Category: Video

Current knowledge about heartworm resistance

Veterinary cardiologist Dr. Clarke Atkins discusses the most current information about heartworm resistance.

Canine | Prevention | Treatment | Veterinary Professionals | Incidence | Resistance
Category: Video

How to minimize development of resistant heartworms

Veterinary cardiologist Dr. Clarke Atkins explains what steps veterinarians can take to minimize the risk of resistant heartworms developing in the future.

Canine | Prevention | Treatment | Veterinary Professionals | Resistance
Category: Video

The spread of heartworm disease in Europe

Veterinary parasitologist Dr. Laura Kramer of the University of Parma explains how heartworm disease has spread across Europe over the past several decades.

Canine | Veterinary Professionals | Incidence
Category: Video

Why alternative heartworm treatment protocols are needed

Veterinary parasitologist Dr. Laura Kramer of the University of Parma discusses the rationale for alternative heartworm treatment protocols.

Canine | Treatment | Veterinary Professionals | Resistance
Category: Video

"Watch-outs" with melarsomine in heartworm treatment

Veterinary parasitologist Dr. Laura Kramer of the University of Parma explains the pros and cons of treating heartworm infections with melarsomine.

Canine | Treatment | Veterinary Professionals
Category: Video

Rationale for doxycycline in heartworm treatment

Veterinary parasitologist Dr. Laura Kramer of the University of Parma explains her rationale for including doxycycline in a heartworm treatment protocol.

Canine | Treatment | Veterinary Professionals | Resistance
Category: Video


Latest News

Twitter: @AHS_Think12

RT @AHS_Think12: Your patient is heartworm-positive. What's next? In this VETgirl podcast, AHS board member and veterinary cardiologist Dr.…

by Heartworm Society

RT @AHS_Think12: You won't find a more passionate advocate for feline heartworm disease education than AHS past president Dr. Tom Nelson. H…

by Heartworm Society