Nearly two dozen participants in a "Tough Mudder" competition, who crawled, climbed and waded through a mucky obstacle course, recently reported developing bumpy, pus-filled skin rashes and fevers.

When Nicole Villagran signed up to do her first Tough Mudder course, she thought she'd be getting an entertaining, if messy, workout. She got that — and much more. Villagran has spent the last 10 days ...

Some of the participants have tested positive for Aernomas, a bacteria which can cause symptoms similar to those of staph infections. Hundreds of people have now come forward, either to local agencies ...

After participating in a recent Tough Mudder obstacle course challenge, at least 22 people have reported developing odd rashes and fevers. When you purchase through links on our site, we may earn an ...