we have noticed the same severe fur loss in our backyard squirrels the last couple of months that others have reported on this site. It's very alarming to witness.
I was shocked to have found this site and discovered that this seems to be a problem all over the US. We feel helpless to treat them and don't have any idea of what to do. Maybe if enough people report the same thing, we can stem the problem before our squirrels become another extinct species.