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. 2016 Apr 6;12:72. doi: 10.1186/s12917-016-0693-9

Fig. 3.

Fig. 3

Pleuritis in polecats. a This animal shows advanced pyothorax and haemopericardium. Numerous Gram positive cocci and a small number of Gram negative bacilli were present in the purulent fluid but the source of infection was not established. b Pleuritis caused by a grass awn (arrow)