Sponsor:
The Trail Running Film Festival - Back on Tour for 2024.

The Trail Running Film Festival - Back on Tour for 2024.

Maia Pandey for NBC News:

More than 100 people said they contracted bacterial infections after competing in a Tough Mudder challenge on Saturday and Sunday in Sonoma, California.

You dig gross mud pools, let them sit for a few days, and then let hundreds of runners crawl through them. Seems like an obvious recipe for exactly this.

MADE BY EINMALEINS