Abortion can occur in sows Subacute There can be an intermittent cough in a group of pigs. There is a general loss of appetite resulting in reduced growth. Lesions Most of the lesions are confined to the respiratory tract. In the peracute and acute cases there is the presence of well demarcated focal dark and solid pneumonic areas particularly in the caudal area of the lung, but lesions can be found also in the cranial lobe. Pleurisy is generally very obvious and may be seen adherent to the lesion.
Shaded area indicates the area of lung generally diseased by pleuropneumonia.
Illustration of an acute pleuropneumonia lesion Gross appearance of the lung Cross section of the lung showing the yellow necrotic areas Pleurisy Diagnosis Bacteriological confirmation needed in peracute, acute and subacute cases. Pleurisy can occur through other diseases, notably Glasser's. Detection of antibodies generally unrewarding clinically, but may be worth considering when needing to tract the disease through a herd. Note pigs can go serologically negative after a while. Treatment Individuals affected Individual Antimicrobial injections, but you must be vigorous and quick in peracute and acute outbreaks.