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Published online 7 November 2005 | Nature | doi:10.1038/news051107-1
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Intestinal worms show their up side
Parasites rally immune cells against asthma and allergies.
Being infected with parasitic worms might not sound all that desirable. But it seems that worms may protect against asthma and other allergies by cranking up the production of cells that calm the immune system.
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