HealthHay fever: What makes the immune system go haywire? Increasing numbers of people are becoming sensitised to what should be seen as innocuous substances. Could our clean living be to blame? Features
LifeLooks like we've got allergies all wrong From pollen to peanuts, we humans are an allergic lot. So could it be that allergies serve an evolutionary purpose, ask Noah Palm and Ruslan MedzhitovOpinion