For outdoor enthusiasts I recommend watching the Animal Channel's "Eaten Alive" show. It starts you out slow with Round Worms a girl got from eating a meal on vacation in Mexico-3 yrs earlier. Then you are introduced to a fisherman who got tape worms from under cooked trout. A woman who got tape worms in the brain. A guy gets Giardia, loses 70 lbs. Then the show kicks it up a notch and we see a guy watching a ball game and feels something in his eye, looks in a mirror and sees a tiny worm crawling inside his eye. Took 3 yrs to show up and took 10 years to get rid of. Caused by flies the worms known as Loa Loa. Then they examine mosquito carry things like malaria. Then they talk about Eco-Challenge-Borneo contestant who picked up some nasty nematodes and they ran all over his body, took months to get rid of. Another guy in Costa Rica gets a maggot (aka Botfly) from a mosquito bite, looked like a small version of the Alien Creature when the doctors cut it out. Then for the show stopper they recreated where a guy who lived near the Amazon that was attacked by a tiny candirú fish while he was urinating on the waters edge, I want say any more, its too painful to even discuss.
Anyway, I'll be stocking up on Deet and making sure I cook very throughly all my food, and of course filter my water. I know the majority of the things shown on the show where contracted outside the US, but the worms and Giardia are here. This show is tough to watch but outdoor lovers should at least try.