Hmmm. Uberpooch, with more infected than uninfected, wouldn't the eventual conclusion of that fortress be just an entire, small but deadly, fortress of were-badger dwarfs? I suppose that might not be fun to play during the transition period between a normal and a were-fort, but if you could set it up so that migrant waves had seperate burrows, some armor, and trained some military skills to the point where they could survive an attack and be infected, but not kill the were-badgers, then you could keep building up your fortress .
Of course I can definitely see how this wouldn't be appealing to everyone.
I've been playing a small fortress recently, only a 2x2 embark, 50 dwarf strict cap right now. Long history on a pocket world. I think all the dwarf civs were dead when I started so its been kind of a revival. I have had a single human caravan come so far, and two mystery human caravans, waiting for.. I think its goblins or elfs my civ might still be at war with, will increase pop cap when ready to deal with that stuff.
Anyhoo, one miller goes and declares herself queen, and then a migration wave comes, and dwarfs start getting drained of their blood. I haven't dealt much with vampires before, but the darn thing drained our queen because I face-palmed and didn't deal with it after the first drained dwarf. Needless to say it was one of the worthless fishworkers who ended up being the vampire, and now they are in a small room, locked behind a door, and the door is walled off on the other side. I guess at least if all the other dwarfs die in this fortress I will still have my vampire in a locked room and just need to wait for the next migration wave.