The Journal of Experimental Medicine, Vol 42, 1-7,
Copyright, 1925, by The Rockefeller Institute for Medical Research New York
MICROBIC VIRULENCE AND HOST SUSCEPTIBILITY IN PARATYPHOID-ENTERITIDIS INFECTION OF WHITE MICE
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VII. THE EFFECT OF SELECTIVE BREEDING ON HOST RESISTANCE. FURTHER STUDIES.
Leslie T. Webster M.D.1
1 From the Laboratories of The Rockefeller Institute for Medical Research.
1. Survivors of an experimental mouse typhoid infection, selected and bred for a number of consecutive generations, give birth to offspring which are more resistant to the disease than a random group of the same inbred race.
2. Offspring of females most susceptible to this infection give birth to individuals which are more susceptible than a group of similar unselected mice.
Submitted on April 23, 1925