Rabies is actually a big deal. If you don't get the shots right away it is almost always fatal. By the time you have symptoms you're basically a goner. Fortunately the shots are very effective--but you have to get them immediately or they won't save you.
Sort of.
I actually got bit by a raccoon last summer (long story and I bear no malice against the raccoon) and had to have rabies shots. You have a lot more time than "immediately", it's more like 10 days (or so I was told by the doctor).
I went to the hospital - emergency, thinking I would need the shots "immediately". Nope. The hospital doesn't even have the drugs on hand. They contact Health Canada. The next day, Toronto Public Health called me. They ship the drugs to my famly doctor the day after that.
The numbers of shots are based on your body weight.
Since I'm 6-3 and 225# my first round of shots were 1 anti-rabies vaccine and 8 "antiglobulin" administered to the bite site. (It was these 8 shots that were based on my size)
They are just normal shots and they don't hurt any more or any less than a normal shot.
Then you come back after 3 days for 1 shot (in the arm)
7 days another shot in the arm
14 days another shot in the arm
28 days - last shot in the arm.
I'm now immune to rabies for a couple of years supposedly. (She told me to try and avoid getting bit again anyway.
But you are correct, if you develope the symptoms of rabies - you are dead 100% of the time. (This I did not know. I figured it might be touch and go depending on how strong you are, but no, you are DEAD guaranteed.)
Yikes.