Yuip, have to agree with RaZ on this one.
The thing is, in the wild, a mother rabbit does not stay with her babies at all. She'll come once or twice a day, weaving a twisted path, then making a huge leap to the burrow/nest so the scent is just... cut off. So, when we well meaning people take rabbits, thinking they were abandoned, we've actually doomed the poor creatures to death. However, looking at your little cotton tail, I am going to say it's probably old enough to be away from mom already, I could be wrong, so don't quote me.
Rabies, I don't think so. I'd head on over to the feed store and get some rabbit feed, small bag and what ever else it may need for a few days, vitamins-electrolytes-whatever. I think the best person to ask would be either RIRJen, or Uchytle...tal... something... John...There we go. LOL. They are the rabbit people