Comparison Between NIH and SRD (Single Radial Immunodiffusion) Techniques for Potency Tests of Inactivated Tissue Culture Rabies Vaccines for Human Use

Potency of inactivated rabies vaccine on human diploid cells was compared by two techniques: S.R.D. (single radial immunodiffusion) in vitro N.I.H. (National Institute of Health) seroneutralization on mice. Statistic analysis showed no significant difference between these two techniques. The N.I.H. method is not improved by addition of Mulgofen in vaccine.