 Interesting. Turning down the knob or something, the volume on this virus. It's like you turn down the knob on the human virus and up the knob on the chicken virus. And so what is he looking for exactly? Is he looking for a virus that's super good at getting into chicken cells and therefore terrible at human cells? Or is he looking for something else? I mean, I think that's sort of the art. This is a judgment call.