Hard-to-kill poop parasites that lurk in swimming pools on the rise, CDC warns

(Ars Technica) Whatever you do this summer, don’t drink the pool water.

Outbreaks of the gastrointestinal parasite cryptosporidium have been spurting upward since 2009, with the number of outbreaks gushing up an average of 13% each year, according to researchers at the Centers for Disease Control and Prevention. The germ spreads via the fecal-oral route and causes explosive, watery diarrhea that can last for up to three weeks. Most victims pick up the infection from recreational waters, such as swimming pools and water parks.  (Read More…)