Oh, also, personal story: Given that I was not planning to crash around in brush off the beaten path, and that I was not insured for it, I declined the vaccine. The doc was like: OK, that's fine, but if a conceivably-rabid animal bites you you need to bath the wound in scalding hot water and return to the United States immediately, and I mean immediately, because the total immune globulin reserves in Tanzania are zero, meaning you cannot be treated for rabies in Tanzania.