Abstract
The term proliferative enteritis (PE) is a collective one used to describe a group of related diseases characterised by adenomatous intestinal epithelium frequently seen to contain intra-cellular campylobacter-like organisms. It embraces four related disease syndromes, porcine intestinal adenomatosis (PIA), necrotic enteritis (NE). regional ileitis and proliferative haemorrhagic enteropathy (PHE), all affecting mainly the terminal ileum.