Gosh I'd be glad to participate, unfortunately my baby is too young to really be relevant. Just a suggestion, you may also want to get the information about whether or not the child in question is in day care or goes to public (or any out of the home) school, vs. homeschooled children... I'd imagine that being around lots of other children would expose any child, vaxed or unvaxed, to more bugs. Good luck and I'll be interested to see the results!