What they are saying is that people who have Aids or other autoimmune diseases can catch diseases from animals more easily. They are not saying you can get Aids from a hedgehogummmmmmmmmmmm? What? The diseases you could catch can cause AIDS? wtf... i thought you could only get AIDS if you came into contact with blood that was infected?
Yes-you can get other diseases from hedgehogs, but it is not common. You can also get diseases from dogs, cats, and most often, other humans. Wash your hands after you touch your hedgehog or any other animals you have and most of the time that is all that you need to do.