I have a friend (we’re in our late 40s) with a very severe peanut allergy. If her husband eats a peanut butter sandwich for lunch and kisses her six hours later, after brushing his teeth, she swells up and hyperventilates.
However, she survived public school in the 1970s, without the whole school’s being asked to accommodate her, or “contraband” sniffing dogs.
I had a girlfriend who did that to me. Though my reaction was rather instantaneous.
I never realized I was allergic to her.
I guess its a good thing she's an ex-girlfriend.
It's possible that the processing used in making peanut butter is different today or perhaps the chemicals used in growing peanuts.
See my post at #33.