Anti-polio gains threatened by returning migrants, 200,000 unvaccinated children in Afghanistan

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Government: U.S. Agency for Global Media

Anti-polio gains threatened by returning migrants, 200,000 unvaccinated children in Afghanistan

ISLAMABAD — The World Health Organization said Monday that the recent return of about 600,000 undocumented migrants from Pakistan to Afghanistan and an estimated 200,000 unvaccinated children in southern Afghan regions are a threat to regional gains against polio.    In its latest assessment of the disease's international spread, WHO said that both neighboring countries had made significant progress in interrupting the transmission of the two su…