Genetics and pollution are the major causes of allergies, but this does not explain the regular increase in the rate of allergies found in western countries.

For a long time, excess hygiene was the culprit, however we now know that several factors are involved in triggering the allergic reaction, excess hygiene included, and all these factors lead to a change in our microbiota.

You will find below a set of flashcards about allergies. (in French only)

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