The Campaign to Eradicate Polio Takes a Giant Step Forward

April 19, 2016

(STAT News) – But for a while now, a component of the vaccine has caused more problems than it has solved, and has actually resulted in a relatively small number of cases of paralysis. So between this past Sunday and May 1, all countries that use the oral polio vaccine developed more than 60 years ago must stop administering the current formula and replace it with a new version. The unprecedented synchronized campaign, over 18 months in the planning, is appropriately known as “the switch.”