The Taliban have suspended polio vaccination campaigns in Afghanistan, the UN said Monday. Afghanistan is one of two countries in which the spread of the potentially fatal, paralyzing disease has never been stopped. The other is Pakistan . News of the suspension was relayed to UN agencies right before the September immunization campaign was due to start. No reason was given for the suspension, and no one from the Taliban-controlled government was immediately available for comment. A top official from the World Health Organization said it was aware of discussions to move away from house-to-hous…