[There's a pause for thought, and when he responds, Billy's voice is somewhat strained. This isn't the first time he's heard this comparison, and it doesn't make him feel any less queasy the second time around.]
It's not the same thing. They're not sick, or monsters. They can't infect people...
[voice]
It's not the same thing. They're not sick, or monsters. They can't infect people...