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Pourquoi il faut laisser les enfants manger de la terre

In a study published online today in Science, the researchers show that in mice, exposure to microbes in early life can reduce the body’s inventory of invariant natural killer T (iNKT) cells, which help to fight infection but can also turn on the body, causing a range of disorders such as asthma or inflammatory bowel disease.

— Early exposure to germs has lasting benefits, Nature.