Changes

*Seen mainly between 6wks-6mths of age but will affect any age

*Seen mainly between 6wks-6mths of age but will affect any age

*Highly pathogenic strains are capable of initiating disease on their own with high mortality in young pigs

*Highly pathogenic strains are capable of initiating disease on their own with high mortality in young pigs

*A fibrinonecrotic [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] with [[Pleural Cavity & Membranes Inflammatory - Pathology|pleurisy]]

*A fibrinonecrotic [[Bronchitis#Infectious causes of bronchitis or bronchiolitis|broncho]][[Pneumonia Overview#Infectious causes of pneumonia|pneumonia]] with [[Pleural Cavity & Membranes Inflammatory - Pathology|pleurisy]]

*Foci of haemorrhagic consolidation or necrosis, mainly around major bronchi, tend to sequestrate

*Foci of haemorrhagic consolidation or necrosis, mainly around major bronchi, tend to sequestrate

*Tending to spread throughout all lung lobes: therefore a cranioventral distribution may not be particularly evident

*Tending to spread throughout all lung lobes: therefore a cranioventral distribution may not be particularly evident