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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.
Roundworms (Toxocara canis) are common intestinal nematode parasites of dogs. The parasite is extremely common in puppies; however, a strong immunity begins to develop in most dogs by 2-3 months of age. Consequently, in well-cared-for pet dogs that have been dewormed as young puppies, infection is uncommon.