Medical X-Press – Emily Johnston Flies and Philip Weinstein
Over the past few decades, allergies and asthma have become common childhood diseases, especially in developed countries. Almost 20% of Australians experience some kind of allergy, whether it’s to food, pollen, dust, housemites, mold or animals. When people suffer from food allergies, hay fever or asthma, their immune system incorrectly believes the trigger substances are harmful and mounts a defense.
https://medicalxpress.com/news/2020-02-early-exposure-infections-doesnt-allergies.html