The Journal of Experimental Medicine, Vol 38, 45-54,
Copyright, 1923, by The Rockefeller Institute for Medical Research New York
MICROBIC VIRULENCE AND HOST SUSCEPTIBILITY IN PARATYPHOID-ENTERITIDIS INFECTION OF WHITE MICE. II
Leslie T. Webster M.D.1
1 From the Laboratories of The Rockefeller Institute for Medical Research.
1. Six strains of paratyphoid-enteritidis bacilli, isolated from man and animals, differed markedly in virulence for mice.
2. The inherent virulence of each strain for mice was not affected by repeated intraperitoneal and per os mouse passage.
3. Individual differences in the susceptibility of the mice to each strain and to graded doses of mercury bichloride were demonstrable. Such variations appear to be of a non-specific nature.
Submitted on March 14, 1923