This is where we think we need to understand for ourselves. Our farmers need to understand what that connection is. This is where we're talking about the CIPARS on-farm study. Where is that resistance coming from? We want to do the testing when those chicks arrive in the barn and then at 30 days and see if there's a difference that happened in the barn. Is there something coming in with the chick before we even get there? Where is it from?
I think a key part is making sure we carry on and get a causal link. As Dr. Rosengren said, we need to try to take the grey down to fewer shades of what we've got, and then we can make some real decisions in terms of the policy we want to have.