Two Women and a Virus This is a story of two women, Susan and Anna, who have little in common. Susan is a scientist in Boston, where she studies dangerous viruses. The other is a mother and wife in an Amish dairy farming community in upstate New York. When a new virus affects the Amish farmers; it does not kill or even make its victims very sick. Its distinguishing feature is that it attacks and kills human Leydig cells,...