Changes

***Occurs in older birds via inhalation of ''E. coli'' in dust; respiratory infection spreads to the blood to cause acute colisepticaemia

***Occurs in older birds via inhalation of ''E. coli'' in dust; respiratory infection spreads to the blood to cause acute colisepticaemia

***Airsacculitis, pericarditis and perihepatitis during acute phase

***Airsacculitis, pericarditis and perihepatitis during acute phase

***Often secondary to virus or mycoplamsa infection or environmental stress

***Often secondary to virus or mycoplasma infection or environmental stress

**Colisepticaemia:

**Colisepticaemia:

***Systemic disease in young calves, piglets, foals, lambs

***Systemic disease in young calves, piglets, foals, lambs

**Associated with neonatal [[Joints - inflammatory#In Cattle|polyarthritis of calves]]

**Associated with neonatal [[Joints - inflammatory#In Cattle|polyarthritis of calves]]

**Found in [[Joints - inflammatory#In Horses|arthritis of horses]]

**Found in [[Joints - inflammatory#In Horses|arthritis of horses]]

===Intestinal infection===

===Intestinal infection===