LIVE POLIO IRUS VACCINES

120
Safety-Field Evidence of Safety
7. Oker-Blom, N.: Personal communication.
8. Yale Poliomyelitis Study Unit. Unpublished
observations.
9. Krugman, S., et al.: Immunization of newborn
infants with live attenuated poliovirus
vaccine. Paper presented at the meeting of
the American Pediatric Society, Swampscott,
Mass., 5 May 1960.
10. Chumakov, M. P., et al.: Report No. 2 on
mass oral immunization of population in the
Soviet Union against poliomyelitis with live
vaccine from A. B. Sabin's attenuated strains.
Academy of Medical Sciences of the USSR,
Institute for Poliomyelitis Research, Moscow,
1960.
11. Sabin, A. B.: Reproductive capacity of polioviruses
of diverse origins at various temperatures.
The Gustav Stern Symposium on Perspectives
in Virology, II. In press.
12. Benyesh-Melnick, M., and Melnick, Joseph
L.: The use of in vitro markers and monkey
neurovirulence tests to follow genetic changes
in attenuated poliovirus multiplying in the
human alimentary tract. In: Live Poliovirus
Vaccines, First International Conference.
Scient. Pub. no. 44 of the Pan American
Health Organization, pp. 179-198, 1959.