Rabies prophylaxis protocols require both vaccine booster shots and multiple post-exposure booster shots, in addition to the initial "immunization".
What is the evidence for the need for these additional immunizations? Is there any documented case of a person contracting rabies after getting a single rabies vaccine dose?
The reason for asking this question is that I received a post-exposure vaccination back around 2005 and at that time the doctor recommended that I come back only for a single booster shot later. Now, apparently in the last 15 or so years the protocol has changed from one post-exposure to three and I am wondering if there is actually any real science behind that or it is a wash-rinse-repeat instruction.