Heartworm Prevention Animal Aid Foundation Heartworm Prevention Protect your pet from Heartworm Disease Heartworms live in the heart and lungs, where they can cause permanent damage - and even death. Good care includes protecting your pet against deadly heartworms by giving them drugs like Heartguard Plus . Dogs are also at risk for infection with parasites like hookworm and roundworms that can cause serious disease.
Mosquitoes carry heartworms.
Dogs can be infected by other parasites like hookworm and roundworms in places contaminated by other animals. Ask your veterinarian about heartworm prevention for cats.