Competitors report falling ill after triathlon event in waters of river Eden

Investigation begins as people complain of diarrhoea and vomiting after swimming in castle’s river-fed lake

The Guardian
Microscopic colitis: Thousands could be suffering from little-known condition mistaken for IBS | The Independent
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https://www.independent.co.uk/news/health/ibs-bowel-symptoms-microscopic-colitis-b2321232.html
Microscopic colitis: Thousands could be suffering from little-known condition mistaken for IBS

Some 17,000 people in the UK are diagnosed with microscopic colitis

The Independent