An official report into the outbreak of vomiting and diarrhoea which followed the Merida Bikes MTB Marathon Series round in Builth Wells, Wales, has concluded that it was probably caused by mud contaminated with sheep droppings. 150 riders sick.

http://www.bikeradar.com/news/article/contaminated-mud-blamed-for-bug-that-hit-161-bikers-19514

Wherever possible, courses should be re-routed to avoid areas which are heavily contaminated with animal faeces

yes I agree, I hope the Pinnacle race directors avoid these areas as well.

That would rule out any trail five minutes into a Lovely ride.
 
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