peanut Allergy and vaccine reaction

I am new to this community but looking for an answer/insight to a question... my son has a peanut allergy that was diagnosed at 14 mos and he was vaccinated on schedule (didn't know the dangers of vaccines back then and now really interested in food allergy/vaccination connection). My question is why did he not react to the vaccinations since he is allergic to the ingredients (i.e. peanut oil)?
Thanks in advance for any information you can provide. Thanks!!


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Where do you get your peanut allergy information?
The internet
My allergist
Friends or family
Total votes: 3