I'll just speak to it quickly, and then I'll turn it over to Sammy.
The research is still preliminary on it. It doesn't eliminate shedding; it just reduces it. So that shed is still there, and once it's on meat it can still grow. So it doesn't eliminate the problem, it just shifts it and maybe gives a false sense of security, which is a concern.
We have that same issue with human vaccines. If you actually give a vaccine and all it does is you have more asymptomatic cases that are still spreading the virus, that's not helpful. As Jeff was saying--