Again, I never said vaccines are to blame for all allergies. It's a theory as to why there is an increase in peanut allergies. One of those articles in the links also mentioned yeast protein being in some vaccines. There's another allergen for you. The vaccine industry hasn't been stellar about making their ingredients known, considering them trade secrets. My own unvaccinated ds had/has soy and dairy allergies. Mild, fortunately. I even delayed giving him dairy until he was one to minimize the possibility of allergies due to an immature digestive tract since I was assuming he was genetically predisposed to having allergies due to his family history.
There is no one cause of allergies. However, like autism, there has been a crazy increase in frequency and it makes sense to investigate possibilities rather than just saying it can't be helped, nothing being done to these children could possibly be increasing their risk. Then, there is also that phenomenon where a body can handle a certain amount of exposure to an allergen, but when it is compounded by exposure to another allergen, the body has a stronger reaction. I can't eat feta cheese during ragweed season without a reaction although I can eat it just fine other times of the year. Allergies are complicated.
I didn't mean to suggest that you were saying vaccines were to blame for all allergies, and I certainly know that allergies, like autism, are complicated and not easily or simply explained. I was only offering some critique of the book itself.