Religious epidemiology: Pilgrims returning from Mecca may be spreadingĀ polio, according to the World Health Organization. “We’re staring at the whites of the eyes of this thing,” the coordinator of the health organization’s Global Polio Eradication Initiative tellsĀ The NYTimes. There’ll be another kind of disease to track: the use of this news by anti-Islam websites as “evidence” for their hate.