The Journal of Experimental Medicine, Vol 39, 265-273,
Copyright, 1924, by The Rockefeller Institute for Medical Research New York
HOMOLOGOUS AND HETEROLOGOUS PROTECTION IN MICE VACCINATED WITH THE TWO TYPES OF MOUSE TYPHOID BACILLUS
Ida W. Pritchett Sc.D.1
1 From the Laboratories of The Rockefeller Institute for Medical Research.
A saline vaccine prepared from our stock strain of M. T. II produces in mice definite protection against the homologous strain, and perhaps some slight cross-protection against M. T. I also. Two vaccines prepared with our stock strain of M. T. I failed to produce any definite protection in mice even against the homologous strain, nor was any cross-protection afforded against M. T. II.
Submitted on October 4, 1923