Louse infestation calibrates immune system regulation

Some parasites can exert a moderating effect on the immune system, perhaps reducing the risk of developing immune dysfunctions like asthma, allergies and some forms of arthritis. Researchers writing in the open access journal BMC Biology studied the effects of several parasites on the immune activity of wild wood mice, finding that louse infestation was associated with a reduced readiness to mount an immune response...

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