Does any one know the risks etc associated with the human rabies shot? Also, why is there a world wide shortage? I have to be vaccinated against rabies for work at the large animal surgery at my university and I cant seem to get a hold of the vaccine. I keep being told there is a world wide shortage. I have never had it and Im worried about possible side effects. I cant seem to find anything on the human vaccine, although theres lots about the one for our pets.