E. coli is a normal bug in the gut. We all have E. coli in our gut. It's the O517:H7 or other strains that are more toxigenic and create the problems. We're very much involved from the human health standpoint.
In terms of vaccines, we're not the regulator of these things. We engage with our partners both in the health portfolio as well as CFIA and others around the public health perspective on these issues, but ultimately the regulatory decisions, etc., are theirs.