Its a fairly recent fantasy novel with a name I swear was something like "the insect hut" or "insect house" or "plague house" or something like that. Its about a redhaired girl who's stricken by the plague and isolated in a little hut to die. But instead of dying she starts to get better, and some guy finds her as she's recooperating and tends to her, and then they embark on a journey somewhere. I swear I remember the cover having flies on it or somesuch.
I've googled evry imaginable set of search terms to no avail.