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Overview of Canine Lungworms. Lungworms are a type of parasite that can infect the respiratory tract in dogs. There are several different parasites that have been identified including: Paragonimus kellicotti, Capillaria aerophilia, Filaroides and Osleri spp.verview of Canine Lungworms. Lungworms are a type of parasite that can infect the respiratory tract in dogs. There are several different parasites that have been identified including: Paragonimus kellicotti, Capillaria aerophilia, Filaroides and Osleri spp.
Canine Heart and Lung Diseases. Dogs acquire heartworm disease when bitten by a mosquito carrying microscopic heartworms. The microscopic heartworms injected into the dog by the mosquito grow in the dog and slowly migrate to the heart and lungs. It is at this stage, 5-6 months after infection, that they begin to cause life-threatening damage to the lungs.