I think I want to split up LO's vaccines due to his severe IUGR. He was born 4 weeks early at only 3 lbs, 6 oz. He's now two months old and has his vaccine appointment next week and he's now barely 6 lbs. I've tried to find an intelligent article researching side effects/risks of underweight or preemie babies vs risk of side effects in typical babies. It really bothers me that they take actual age (not adjusted) and then don't take weight into account. The only articles I can find are all about Autism. I really don't want to get into the Autism debate, just the actual known side-effects of the vaccines and if there's increased likelihood for the tiny babies. Thanks to anyone that's already done their research!