You can get it, but it is less likely (I assume you wash your hands after handling her). The other critters are more at risk, as they could have easily come into contact with fecal matter, since squirrel poop seems to get everywhere (or is that just my house? lol) May not be a bad idea to just treat the whole bunch, as much as a pain that is. For them to be that large, she has had them a while (they don't usually start passing them until they get quite a few of them, from my understanding.)