Parasites and Allergies

[GeneW]

It is well established that intestinal parasites dampen mammalian immune reactions. But in a surprise result, scientists have found that another kind of parasite – the body louse – does too. That means the epidemic of allergic disorders in modern, urban people might be due to our having rid ourselves of lice and worms.

http://www.newscientist.com/article/...allergies.html

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