The Journal of Experimental Medicine, Vol 72, 445-451,
Copyright, 1940, by The Rockefeller Institute for Medical Research New York
INFLUENCE OF AGE FACTORS ON SUSCEPTIBILITY OF MICE TO RABIES VIRUS
J. Casals M.D.1
1 From the Laboratories of The Rockefeller Institute for Medical Research
1. 7 to 9 day old mice are more susceptible than older mice to injections of fixed or street virus by any route.
2. 20 day old mice are more susceptible than 60 day old mice to peripheral but not intracerebral injection of fixed virus.
3. 20 day and 60 day old mice are equally susceptible to street virus.
Submitted on July 9, 1940