Although polio has been eliminated as an endemic disease in the United States, that isn’t true for other parts of the world. The US Centers for Disease Control and Prevention issued a Level 2 travel ...
In its original form, the virus survives in just two countries. But a type linked to an oral vaccine used in other nations has already turned up in the West. By Apoorva Mandavilli Most American ...
Aside from recent outbreaks of polio in war-torn regions of the world, the deadly virus is close to being eradicated, thanks to vaccines. All vaccines work by training our immune systems to recognise ...
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