- FDA - Heartworm Prevention in Your Pet
- American Animal Hospital Association
- AAVP (American Association of Veterinary Parasitologists)
- American Veterinary Medical Association (AVMA) Animal health page
- Companion Animal Parasite Council
- Feline Heartworm Disease - Cats get heartworms too! .
- European Scientific Counsel Companion Animal Parasites (ESCCAP)
RT @AHS_Think12: Is there such a thing as "natural" heartworm prevention and treatment? https://t.co/SNjbx6AzAa