How to Treat Heartworms in Dogs | PetMD

• Dirofilaria immitis, also known as heartworm or dog heartworm, is a parasitic roundworm that is a type of filarial worm, a small thread-like worm, that causes dirofilariasis. It is spread from host to

• Dirofilaria immitis

• Heartworms in Dogs: Facts and Myths - WebMD