PAKISTAN is losing momentum in its fight against polio. This year, 26 cases of wild poliovirus have been confirmed, most of them in KP, with smaller numbers in Sindh, Punjab and GB. While the count may not be as high as last year’s 74, environmental surveillance tells a troubling tale. In August, out of 126 sewage samples tested from 87 districts, 51 were positive — a 40pc positivity rate. In Sindh, 24 of 29 samples, or more than 80pc, carried the virus. The figures that make the headlines are only the surface;........

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