[This is probably true enough. Despite all the Vor crests with their arcane symbology that he's familiar with, he can't recall seeing a round-cheeked hamster on a single one.]

Y'know... innoculations? Jabs? Stick a needle full of God-knows-what into you and it keeps you from getting sick later on?

[Ivan mimes plunging a needle into his own upper arm, right around the deltoid, where he's received numerous preventative measures against everything from exotic galactic plagues to childhood illnesses. Ah, modern medicine, even on backwards Barrayar.]

Keeps your little--er, big--beastie from becoming a plague vector and public health menace? You've done that, right?