I solved the mystery on my first Strangerville play and the Sim who did it is still living in Strangerville, married now and has one kid. The world is completely normal, I haven't seen any infected people (not in any other worlds either).
I also have few saves with Sims who live in Strangerville but have not solved the mystery. I like it, because it's more fun to see those infected Sims around, it's so creepy when they run, lol. I'm planning to solve the mystery on some of those saves, but not on all of them.
I'm also planning to solve the mystery only partly on one of my saves. I want to make my Sims live in Strangerville with maximum strangeness. I love the atmosphere, sounds, strange plants and the vines that come up on sinks, showers, bath tubs and toilets.
