Tracheitis

Infectious agents

Tracheitis (Image sourced from Bristol Biomed Image Archive with permission)

• Inflammation of the trachea - tracheitis

• Tracheitis can occur as part of an extension of an upper or lower viral or bacterial respiratory infection
  • eg: IBR, FHV-1, EHV-1, influenza viruses
  • eg: Bordetella bronchiseptica, Strep. equi. subsp. zooepidemicus/equi, Pasteurella multocida
• May cause
  • Obstruction to airflow
  • Aspiration pneumonia
• Acute inflammation passes through the same stages as rhinitis

Chronic polypoid tracheitis

• In dogs and cats
• Secondary to chronic inflammation

Infectious causes of tracheitis

.	VIRAL	BACTERIAL	FUNGAL	PARASITIC
Dogs	Infectious canine tracheitis	secondary	.	Filaroides osleri
.	Canine herpes virus	.	.	Capillaria aerophila
.	Parainfluenza- 2	.	.	.
Cats	Feline viral rhinotracheitis	secondary	.	Capillaria aerophila
Horses	Equine influenza	Streptococcus equi subsp. zooepidemicus	.	.
Cattle	Infectious bovine rhinotracheitis	subclinical CAR bacillus	.	Dictyocaulus viviparus
Sheep	.	subclinical CAR bacillus	.	.
Pigs	Swine influenza	.	.	.