We have a Lac Megantic in Québec, not far from the Maine border. There was a terrible runaway train accident in the town that killed many people a few years ago. Such names adapted from site descriptions by the native Abenaki people are common in the area. Megantic indicated a good fishing ground.
Mooselook seems to be a mishearing of an Abenaki name, according to Wiki, "Moose feeding place" (many such Indigenous names designate places with useful natural resources such as game, fish, native plants etc).
Sounds to me that the bear hadn't been properly cooked. Bear are omnivores, like pigs ... and humans, so perhaps more likely to carry the parasites.