Have you heard of "Health Officials" admitting that it has affected humans? There are a few doctors, but Health Officials?
And don't forget, animals come with their own natural coats, and birds with even harder to penetrate feathers. Animals were not resistant to Lyme Disease, but that is a mere bacteria. Animals may not be totally resistant to Morgellons, though, either. Maybe house pets who get dressed by their owners in cotton clothes may well come down with it, but you may never hear about it. Well, I just remembered that two people here said they came down with it after coming in contact with birds. It's not only supposed to be received just through cotton clothing, is it? Perhaps animals and birds can carry it but not be affected because of their skin being protected by their natural covering.
I don't understand why you think what we are talking about here is bed bugs. If it is, though, my Mom and Dad were right when they kept telling me "Don't let the bedbugs bite!"