Study Shows Food-Borne Infections Are Linked to Risk of Inflammatory Bowel Disease. IBD typically refers to Chrohn’s disease and ulcerative colitis. Although many factors have been blamed, this research looked at salmonella and campylobacter. See report at WebMD.
Some think bouts with food poisoning may have some impact on the microflora in one’s gut. A possible link here could be that those severe bacterial infections caused dysbiosis or some other imbalance of bacteria in the gut – perhaps killing off some good bacteria that helped to regulate the immune response in the gut. Over time this might lead to IBD.