I just joined this forum and noticed this thread. Was wondering how the bunny is doing now? I took a look at the picture and to me, it does look like fur mites, especially if the fur is falling out and has 'dandruff' mixed throughout. I dealt with fur mites in my two rabbits a couple of years ago; went the vet and got meds to treat them (can't recall now if it was Ivermectin or Selamectin). The treatment cleared up the problem very quickly.
Oh, and as Maramalade mentioned, yes...the mites can affect humans. My old vet (no longer my vet, btw) swore up and down that fur mites can't bother humans, but I was getting red welts all over my stomach and some on my arms...didn't realize what was biting me until my rabbits were properly diagnosed. Once their fur mites were gone, the bites disappeared from my skin as well. I *think* the mites came in on some hay I'd purchased from a local feed store. Got rid of the hay, cleansed all bedding, treated the bunnies, and problem was solved. :o)