Inhalation

Foreign objects enter the respiratory system and cause infection. These foreign objects include vomitus and food. This phenomenon often occurs in dogs with abnormalities in their upper gastrointestinal system. In addition, improper anesthesia handling and improper force-feeding are also easy to cause.

Bacterial

Bacteria enter the lungs through the oral or nasal cavity, further causing infection in the trachea, bronchi and alveoli. The incidence rate is higher in working dogs weighing more than 12 kilograms, hunting dogs and dogs that exercise a lot. It can occur at any age, but it is more common in children under 1 year old, and the incidence rate is higher in male dogs.

Immunity

Mainly occurs in Siberian Huskies due to congenital immune deficiency causing lung infection. In addition, heartworm infection is also a major cause.

Moldiness

Molds or yeasts in the environment or other organs in the body enter the lungs and cause infection. Common sources of infection include Blastomyces, Histoplasma, Coccidioides and Cryptosporidium. Usually occurs in large dogs.

Injury to the lung itself

Mainly damage to the tissue between the alveoli and the alveoli, which is the most common problem associated with canine distemper infection.