![]() ![]() ![]() The only leader in the West who took him up on the idea was Fidel Castro. This approach, Sabin argued, could be used to eliminate polio from entire countries, even the world. Within weeks, polio had disappeared from the city. In just four days, Sabin’s team managed to vaccinate more than 80 percent of the children under the age of eleven-26,000 children in all. It was also a live vaccine, containing weakened but intact poliovirus, and so it could produce not only immunity but also a mild contagious infection that would spread the immunity to others. His was an oral vaccine, easier to administer than Salk’s injected one. "Five years later, Albert Sabin published the results of an alternative polio vaccine he had used in an immunization campaign in Toluca, Mexico, a city of a hundred thousand people, where a polio outbreak was in progress. ![]()
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