RESOURCES: What's Eating You

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Science  29 Jun 2001:
Vol. 292, Issue 5526, pp. 2403
DOI: 10.1126/science.292.5526.2403d

They want to gnaw your flesh, sup your blood, or maybe set up house in your brain and raise a family. However they make a living, parasites can wreck your health, maim, and kill. This site from the Centers for Disease Control and Prevention (CDC) supplies a good introduction to medically important parasites—from tropical menaces like the tiny worms responsible for schistosomiasis to homegrown bugs like Giardia, the culprit in “hiker's diarrhea.” Although aimed mainly at medicos, the content will satisfy curious nonexperts as well.

No-nonsense accounts detail geographical distribution, symptoms of infestation, and the intricate life cycles for Giardia and more than 100 other body invaders. The site boasts a suitably gruesome gallery, along with the lowdown on treatments. And if you need help identifying a puzzling specimen, submit a photo to CDC experts.

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