Reuters: WHO counts down Africa polio clock despite fears of new outbreak
“Africa could be declared free of endemic ‘wild’ polio early next year if a strain last seen in Nigeria almost three years ago does not resurface, the World Health Organization’s Africa director said on Tuesday. … Wild polio still circulated in Pakistan and Afghanistan, and an environmental sample was found in sewage in Iran earlier this month, but all recent African cases have been ‘vaccine-derived’ polio…” (Miles, 5/28).