In a previous communication1 we presented in the form of a chart the results secured up to that time in producing poliomyelitis in monkeys by injecting intra-cerebrally a virus, denominated M.A., obtained from the spinal cord of a child suffering from epidemic infantile paralysis. The virus had been passed successively through three generations of monkeys and is still being transmitted.
We desire in this communication to present the results in the form of a chart2 obtained up to this time with the second virus, denominated K. It is, in our opinion, desirable that the facts thus far secured relating to this virus be published, since they extend considerably the previous observations.
In the first place, it can now be affirmed that the virus of poliomyelitis cannot be very difficult of transmission to monkeys under the conditions leading to the development of the lesions and symptoms characteristic of epidemic poliomyelitis in
FLEXNER S, LEWIS PA. THE TRANSMISSION OF EPIDEMIC POLIOMYELITIS TO MONKEYS: A FURTHER NOTE. JAMA. 1909;LIII(23):1913. doi:10.1001/jama.1909.92550230039003a
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