ULTRAFILTRATION OF THE VIRUS OF POLIOMYELITIS.
From the ultrafiltration analysis the size of the virus of human poliomyelitis has been estimated to be somewhere between 12 and 17 mmicro. Technical difficulties encountered and the low concentration of the virus make it seem possible that the virus is even smaller.
Laboratories of the International Health Division of the Rockefeller Foundation, New York.
M
M
Theiler
J H
JH
Bauer