Rabies vaccines are conventionally delivered IM, but due to the high cost of cellculture-derived vaccines and the pressing need for affordable vaccination regimens in endemic regions, ID delivery has been extensively studied. Both post-exposure prophylaxis and pre-exposure prophylaxis ID regimens induce protective titers, and WHO has recommended ID delivery of reduced doses of rabies vaccines since 1991 (WHO 2005; . Given equivalent doses of antigen, delivery to the dermis appears to be either superior or equivalent to IM/SC (Bernard et al. 1982; Bernard et al. 1987; Fishbein et al. 1987; Phanuphak et al. 1990) . A detailed review on ID rabies vaccination can be found elsewhere in this special volume on ID immunization (Warrell 2011 ).