Vox: We’ve almost eradicated polio. Ironically, a big threat now is vaccines.
“The world is closer than ever to eradicating polio, the horrible paralysis-inducing disease that primarily infects children. But the tail-end efforts are at risk from the very thing that made eradication programs a success: the vaccines themselves. … The [oral polio] vaccine’s risk: It contains a live virus, which can mutate back into a virulent form…” (Resnick, 1/8).