He began backtracking two months later, after caseloads had swollen tenfold, to around 4,000 a day, and 90% of the intensive-care beds in the state were occupied.
This setback might have been easier to take for foreign companies had the market not since grown tenfold, to $1.6 trillion, according to The Nilson Report, an industry newsletter.
And although in Pakistan the incidence of polio dropped tenfold between 1995 and 2000, conflict, poor sanitation and a mobile population helped the number of cases jump by 62% last year.