I think the celebration is slightly premature. Several areas in the African interior are inaccessible due to conflict, so testing is not possible. ... so we ar

I think the celebration is slightly premature. Several areas in the African interior are inaccessible due to conflict, so testing is not possible. ... so we are not really certain it's been eradicated in those areas. Also important is the possibility of environmental reservoirs for the disease in nature. Hopefully not, but it is still possible. Only continued vigilance can guarantee victory. Many areas were declared polio free once before, only to have it resurface.