The causes are bacterial/viral pathogens, for example: Mycoplasma, Bordetella Bronchiseptica, Canine Distemper and Influenza Viruses, and in rare cases Lung Flukes (Paragonimus Kellicotti), and Nasal Mites (Pneumonyssoides Caninum). We'll see the different types of respiratory infections in dogs, and then find out the dos and don'ts when caring for him.