Wassermann Reaction in Syphilis of Rabbits

Observations have been made over a period of several months on the Wassermann reaction in rabbits inoculated with the same strain of Spirochaeta pallida. The original strain was obtained from an inoculated rabbit that was sent by Dr. Louise Pearce from the Rockefeller Institute and is known as number 4,275. Three rabbits of the series were inoculated from rabbit 4,275 and the others from rabbits with later infections.