Certainly based upon the evidence we have today, there very well may be an association and folks should be cognizant that we use too many antibiotics now. I'm not convinced there isn't a causation from what we found.

The fact that we found an association between antibiotic use and the subsequent development of asthma is in itself a fairly substantial message. But I don't think it's by any means conclusive. It appears to be an association, but we need further study.