I don't think you get it from moose. But yes, bear meat. You have to cook it into submission - really well done, to kill all the larvae in the meat. Ugh. I read a travel story once of someone traveling in the arctic (a long time ago), and they killed a polar bear for food (they were starving, and also this was pre- endangered issues). They described the meat as being visibly riddled with cysts (with the larvae in them), almost like swiss cheese. Yuck.
I don't know how often folks get trichinosis from bear meat, mind you. It's just that when they DO get it, bear meat is a common source.
- Ant Farm