- The mosquito is the only known vector for transmitting heartworm.
- The average lifespan of heartworms in untreated pets is 5-7 years in dogs and 2-3 years in cats.
- Virtually 100% of dogs exposed to infective heartworm larvae become infected; in cats, this number drops to 61% to 90%.
- Microfilariae are found in the blood of 80%-90% of dogs, while only 20% of cats have these in their blood.
- Heartworm infection in cats exists everywhere heartworm in dogs exists.
- The American Heartworm Society (AHS) estimates that only 55% of dogs in the U.S. are currently on a heartworm preventive, leaving 27 million dogs at risk of acquiring heartworm disease.
- A study performed at North Carolina State University indicated that 25% of cats infected with heartworms were solely indoor cats.
- Heartworms may infect more than 30 species of animals including coyotes, foxes, wolves and other wild canids, domestic cats and wild felids, ferrets, sea lions, and humans.
- Prevention is far more effective and less costly than treatment.
- Research suggests that heartworm disease could be virtually eradicated using available preventives.
- Heartworms affect cats differently than dogs, but the disease they cause is equally as serious.