How should we understand the fear and fascination elicited by the accounts of communicable disease outbreaks that proliferated, following the emergence of HIV, in scientific publications and the mainstream media? The repetition of particular characters, images, and story lines - of Patients Zero and superspreaders, hot zones and tenacious microbes - produced a formulaic narrative as they circulated through the media and were amplified in popular fiction and film. The "outbreak narrative" begins with the identification of an emerging infection, follows it through the global networks of contact and contagion, and ends with the epidemiological work that contains it. Priscilla Wald argues that we need to understand the appeal and persistence of the outbreak narrative because the stories we tell about disease emergence have consequences. As they disseminate information, they affect survival rates and contagion routes. They upset economies. They promote or mitigate the stigmatizing of individuals, groups, locales, behaviors, and lifestyles.