After a long time away from the game I started playing again - and found out the hard way that Vampires and Were creatures were added.
First and only Were so far - A human werepanther shows up, but just meanders around the edge of the map and I soon discount him. Till he gets in a scuffle with one of my lumberjacks, then he runs off.
Dwarves drag the injured dwarf into the hospital, and I think everything is ok. Till a short while later where a were panther starts rampaging through the hospital, right into my crafting area and mauls 3 more dwarves (killing one by ripping his leg off) before being taken down by the militia.
This time I watch carefully for the change to lock the hospital doors in case a dwarf changes - the first panther was slow charging out, the second dwarf who changed got out too fast for me to lock the door. He runs into a miner who tries to fight him. Panther does a wrestling move, snaps his leg. Then the panther tries to eat his head, about 20 times, each time being deflected by a copper helm. Meanwhile a fisher is punching the panther in the kidneys, and doing a lot of nothing.
Panther moves on to strangling the miner (an entire page of the report was just that) and finally the militia shows up and carves him to pieces.
All wounded dwarves are put in quarantine in the hospital, walled in with no food or medical attention for 2 months, till im sure they wont change.
All in all, 3 dead dwarves, and 2 injured, and some rather amusing combat reports.