‘The Switch’ Was Supposed to Be a Major Step Toward Eradicating Polio. Now It’s a Quandary

September 13, 2019

(STAT News) – Three years ago, the leaders of the international campaign to eradicate polio pulled off a landmark feat, phasing out a problematic component of the vaccine used in developing countries, and introducing a newer version that they hoped would put the world on a better footing to finally eliminate a global scourge. Now, some organizers are weighing whether “the switch,” as the process was known, needs to be reversed. If it’s not, some fear, the world could face a heightened risk of spread of the disease, currently confined to its last redoubt, Pakistan and Afghanistan.

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