Word: vaccinees
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Dr. Francis stopped when he finished telling what had been done. Dr. Salk, who rose to a standing ovation from 500 usually undemonstrative scientists, took a peek into the future: the vaccine, he suggested, might be made almost 100% effective. This does not mean that polio will be suddenly abolished...
The test vaccine was given in 127 areas, deliberately picked because they had had a high polio-attack rate for several years. This was to make sure that there ivould be enough cases for the epidemiologists and their statistical machines. No fewer than 1,830,000 children were studied in...
Six big U.S. pharmaceutical firms* are now producing Salk vaccine or hurrying to get into production. The vaccine works on a principle that has already provided protection against such traditional plagues as smallpox and yellow fever. When they attack human beings or other mammals, most viruses stimulate the invaded system...
Polio virus is unusual in that there are three main types. All can cause paralysis, but one type causes more than the others combined. Within each type there are many different strains. The Salk vaccine is made by taking a representative strain of each type and growing it-till it...
President Dwight Eisenhower ordered the State Department to transmit information on the Salk vaccine and its effectiveness to 75 nations through U.S. Ambassadors, and the World Health Organization planned to duplicate this effort. Actually, relatively few countries have facilities to make the vaccine; only a few areas in the world...