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The focus must switch from eradication of the polioviruses to the development of new long-term immunization policies that will minimize the silent circulation of polioviruses, researchers say.

New yorkUnited statesAgnese collinoKonstantin chumakovStanley plotkinRobertc galloChristian brechotKathy hochulGlobal polio eradication initiativeStrategic advisory group of experts on immunizationHow it changed our societyWorld health organizationUmberto veronesi foundationLondonand jerusalemNew england journalUmberto veronesi