Salk, J.E. (1959). Preconceptions about Vaccination Against Paralytic Poliomyelitis. Ann. Int. Med.50(4): 843. (Made available by National Office of Vital Statistics, Washington, D.C.)
2.
Poliomyelitis Surveillance Report No. 160, Communicable Disease Center, U.S. Public Health Service, Dec. 5, 1958 .
3.
Data presented through kindness of Dr. Joseph Molnar, Commissioner of Health, Detroit, Michigan.
4.
Data presented through kindness of Dr. Alex Langmuir, Communicable Disease Center, Atlanta, Georgia.
5.
Sabin, A.B. (1959). Present Position of Immunization against Poliomyelitis with Live Virus Vaccines. Brit. Med. J.5123, 663.
6.
Fox, J.P., Gelfand, H.M., Lebranc, D.R., and Conwell, D.P. (1957). Studies on the Development of Natural Immunity to Poliomyelitis in Louisiana. I. Overall Plan, Methods and Observations as to Patterns of Sero-immunity in the Study Group. Amer. J. Hyg. 65, 344. Fox, J.P., Gelfand, H.M., Lebranc , D.R., and Rowan, D.F. (1958). The Influence of Natural and Artificially Induced Immunity on Alimentary Infections with Polioviruses . Amer. J. Pub. Hlth.48, 1181.
7.
Salk, J.E. (1959). Poliomyelitis Vaccine Preparation and Administration—Analysis of Basic Premises and Current Practices. Jour. Amer. Med. Assoc.169, 1829.
8.
Salk, J.E. (1956). Antigenic Potency of Poliomyelitis Vaccine—Influence on Degree and Duration of Vaccine Effect. Jour. Amer. Med. Assoc.162, 1451.
