БИОграфия Mario Lanc

Canine Heartworm DiseaseDogs are regarded as the definitive host for heartworms (Dirofilaria immitis). However, heartworms can infect more than 30 species of animals (e.g., coyotes, foxes, wolves and other wild canids, domestic cats and wild felids, ferrets, sea lions, etc.) and humans too. When a mosquito carrying infective heartworm larvae bites a dog and transmits the disease, the larvae grow, migrate and develop from the body over a period of several weeks to become sexually mature female and male worms. These live in the heart, lungs and associated blood vessels. As older adults, the worms mate and the females release their own offspring (microfilariae), pronounced: (micro-fil-ar-ee-a), into the blood stream.Offspring can be discovered in the bloodstream (pre-patent period) about six to seven months after the infective larvae from the mosquito enter the dog. The male heartworms (four to six inches in length) and the females (10-12 inches) become fully grown about one year following infection, and their life in dogs seems to average around five to seven years.