IMMUNOLOGIC CLASSIFICATION OF POLIOMYELITIS VIRUSES: IV. RESULTS OF TYPING BY NEUTRALIZATION OF PROTOTYPE VIRUSES WITH ANTISERUM PRODUCED BY VACCINATING MONKEYS WITH UNKNOWN STRAIN AND AN ADJUVANT12

Abstract
JONAS E. SALK, J. S. YOUNGER, L. JAMES LEWIS, BYRON L. BENNETT; IMMUNOLOGIC CLASSIFICATION OF POLIOMYELITIS VIRUSES: IV. RESULTS OF TYPING BY NEUTRALIZATION OF