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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.
Severe and untreated cases can be fatal. Signs of heartworm disease in dogs are a deep cough, fatigue, lethargy, labored breathing, weight loss and distention of the abdomen. While cats are less susceptible to heartworm infection, their body is much more sensitive to it.