Evidence That Daycare Protects Against Diabetes Is Still Equivocal
I have a theory on why this works. We know that daycare exposure is believed to protect against development of asthma and atopic disease by a healthy stimulation of Th1 immunity and balance of Th2 immunity. It is not unreasonable to assume that, when nature takes its course and an infant gets an infection, that the resultant reaction of the immune system will be more balanced than that of an artificial stimulation such as with vaccines. And to those stay at home moms…exposure to healthy flora as well as avoidance of antibiotics would most likely have the same effect.
Dia Care — Abstracts: Kaila and Taback 24 (8): 1353