Hmm one interesting thing I found is that Lactobacillus rhamnosus is "The Lactobacillus rhamnosus and L. reuteri species are most commonly found in the healthy

Hmm one interesting thing I found is that Lactobacillus rhamnosus is "The Lactobacillus rhamnosus and L. reuteri species are most commonly found in the healthy female genito-urinary tract" [1] I would think that it is transferred to the child at birth. Some factors that could lead to a higher incident of peanut allergies if this bacteria is vital to preventing it: - Child was delivered via cesarean w/o a vaginal swab transfer. The rate of c-sectons has certainly increased quite a bit in the last few decades. - The Mother did not have a health population to begin with. - The use of antibiotics that could wipe these strains out. Either in the mother prior to delivery or in the child after being born. - lack of introduction through other sources (some yoghurts and cheeses) [1]https://en.wikipedia.org/wiki/Lactobacillus_rhamnosus https://en.wikipedia.org/wiki/Lactobacillus_rhamnosus