My concern is personal. My hometown is in the area that has been hardest hit by the Ebola virus. (I am in contact with my family but have not been back to visit since 2007). And the Kissi people (my tribe) are the majority in the places in all three countries where Ebola has broken out: the Kissi Chiefdoms in Kailahun, Sierra Leone; Gueckedou, Guinea; and Lofa County, Liberia. Are barefoot walkers, I wondered, coming in contact with Ebola-positive body fluids on the grounds they tread upon? People are always spitting out saliva. If an Ebola-positive person walks around barefoot, steps on a sharp object, and bleeds, he or she would easily spread the virus. And if an Ebola-negative barefoot walker steps on an Ebola-positive saliva or blood, that barefoot walker would unknowingly become infected. I'm not sure how much barefoot walking is contributing to the spread of the virus right now, but a virologist confirmed my hypothesis.