The Rise of a Vaccine Resistant strain of Polio

Globally, we have Polio on the ropes. It's been eradicated in countless countries across the globe. It should only be a matter of time before it goes the way of Smallpox. But there are a few hold-outs, where the virus is stubbornly hanging on. This story is about a virus's last ditch effort to survive. » 11/11/14 5:17pm 11/11/14 5:17pm