Deworming treatments and microbial infections: good for you, not so good for everyone else

On the long list of things that give me the heebie jeebies, parasitic worms are right up there with snake orgies (a uniquely Canadian experience) and house centipedes. Many, but not all, of these worms are intestinal parasites. They latch onto the wall of the intestine and slowly siphon away nutrients, leaving their unassuming hosts weak and malnourished. Left to their own devices, parasitic worms, or helminths, can survive for years inside a host. This is quite astonishing given that our bodies employ a complex immune system to hunt down and destroy invading pathogens. Continue reading