Answers are grounded in this paper and cite their sources.
It was confirmed in this study that tissue culture fluid harvested from rabies virus infected cell culture and inactivated by BPL or UV irradiation can be used for immunization against rabies. The protective activity of such preparation in mice was, however, generally not much higher than that of the NIH reference vaccine in a mouse potency test.
No takes yet. Share an insight, caveat, or question.
Wiktor et al. (1969) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: