I don't know the answer to that. Whether serious allergies are more of a problem now or not. I know me dad nearly died from a penicillin injection 60+ years ago, and that could have been a reaction to all the goop they put in the injections back then and not the penicillin. And some kids in school were sensitive to various things but it just seems so much more prevalent now. Maybe it's just more diagnostic accuracy.
Add:
http://www.foodallergy.org/file/facts-stats.pdfThey're documented to be on the rise. Why is another question.
