Polio is circulating again in the West: What we know so far about transmission in New York and London | Society | EL PAÍS English
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La OMS considera esencial una amplia respuesta al riesgo de propagación de polio - World | ReliefWeb
![Gavi, the Vaccine Alliance on Twitter: "These vaccines have helped the world reduce polio cases by >99% and prevented ~20 million children from suffering paralysis! Eradication is in reach but there is Gavi, the Vaccine Alliance on Twitter: "These vaccines have helped the world reduce polio cases by >99% and prevented ~20 million children from suffering paralysis! Eradication is in reach but there is](https://pbs.twimg.com/media/Ff7HFBbXwAAWqWy.jpg)
Gavi, the Vaccine Alliance on Twitter: "These vaccines have helped the world reduce polio cases by >99% and prevented ~20 million children from suffering paralysis! Eradication is in reach but there is
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