The defence of dirt
This is a neat commentary about the theory that our sterilized society is responsible for the increased rates of atopic disorders. I strongly agree with this theory. The increased rates of immunizations coupled with the rampant use of antibiotics (without replacing with probiotics) leads to a Th2 dominant state. This does not happen in a vacuum–it is the end outcome of a serious of events that leads to the imbalance of the immune system.
bmj.com Watts 328 (7450): 1226 -