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Proponents and opponents of live-virus poliomyelitis vaccines, which are taken by mouth, got closer to the infighting last week. All the leading scientists involved on both sides of the struggle to displace the Salk killed-virus vaccine (which must be injected) appeared at research meetings in Atlantic City and...

Author: /time Magazine | Title: Medicine: Too Many Polio Vaccines? | 5/2/1960 | See Source »

Shift in Aim. Despite five years of intensive efforts to get everybody in the U.S. Salk-vaccinated (about 300 million shots have been injected), 91 million people still have not had any vaccine. And paralytic polio has been increasing for two years. From 2,500 cases in 1957 it went...

Author: /time Magazine | Title: Medicine: Too Many Polio Vaccines? | 5/2/1960 | See Source »

Why? Three doses of Salk vaccine are only 80% to 90% effective in conferring immunity, said two U.S. Public Health Service experts. Advocates of live-virus vaccines maintain that their preparations, taken in one or three doses, confer immunity in 90% or more of the vaccinated, as measured by laboratory...

Author: /time Magazine | Title: Medicine: Too Many Polio Vaccines? | 5/2/1960 | See Source »

For the purists, Johns Hopkins University's Dr. David Bodian said that there should be a clear showing, as in the Salk 1954 field trial, based on different paralysis rates among vaccinated and unvaccinated. This was exasperating to both the University of Cincinnati's Dr. Albert B. Sabin...

Author: /time Magazine | Title: Medicine: Too Many Polio Vaccines? | 5/2/1960 | See Source »

But while some viruses are under indictment as causative factors in certain forms of cancer, others may be helpful in treating the disease. Dr. Bernard Briody of New Jersey's Seton Hall University told the meeting that the cowpox virus (used in smallpox vaccine) kills some cancer cells and...

Author: /time Magazine | Title: Medicine: Viruses & Leukemia | 4/11/1960 | See Source »

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