Polio cases could be wiped out within 12 months, says World Health Organisation

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The World Health Organisation is confident polio is in its dying days and could be eradicated within 12 months, despite challenges in Pakistan and Afghanistan, where the virus is still endemic and vaccination campaigns are sometimes targeted by extremists.

If the virus is wiped out, polio will become only the second human-hosted virus to be eradicated since the end of smallpox in 1980.