Capillaria aerophila

Capillaria aerophila is a parasitic roundworm that lives in the respiratory tract of foxes, dogs and other carnivorous mammals, first described by Creplin in 1839. It completes its entire life cycle within a single host, and infection, known medically as pulmonary or bronchial capillariasis, is commonly called lungworm; most infections cause only mild coughing and respiratory irritation, though heavy burdens can lead to secondary bacterial pneumonia. The parasite has been recorded on every continent and is known to infect domestic dogs and cats as well as wild carnivores including foxes, badgers and bears. This description is adapted from Wikipedia contributors under CC BY-SA 4.0; changes were made. https://creativecommons.org/licenses/by-sa/4.0/