THE 21ST CENTURY IS NOT GOING AS WELL AS I’D HOPED: Polio Response in Africa to Be Fast, Difficult and Possibly Dangerous. “After two years with no cases in Africa, experts were elated at the imminent taste of victory on the continent, considered the toughest front in the fight against infectious diseases. Those hopes were dashed this week when two new cases were discovered. Now Nigeria rejoins Pakistan and Afghanistan on the list of countries where the disease has not been completely eliminated.”