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, 14:23, 30 June 2010
*Caused by ''[[Haemophilus parasuis]]''
*May cause suppurative [[Bronchi and Bronchioles Inflammatory - Pathology#Infectious causes of bronchitis or bronchiolitis|broncho]][[Lungs Inflammatory - Pathology#Infectious causes of pneumonia|pneumonia]] and [[Pleural Cavity & Membranes Inflammatory - Pathology|pleuritis]] (as part of polyserositis)
*Stress of mixing, weaning and adverse environmental conditions are predisposing to the disease