In the spring of 2003 SARS prompted the first global health alert of the twenty-first century. Hardest hit were the three metropole cities of Beijing, Hong Kong, and Taipei where residents confronted not only threats to their health and material well-being, but also to the vitality and resilience of their societies. Patients with a virus that resisted known therapies overwhelmed hospitals and frontline medical workers and as the disease unpredictably spread to communities and inflicted fatalities, collective trauma mounted. Quarantine practices of medieval Europe ultimately halted the outbreak.Multidisciplinary in its approach, SARS explores the medical, social, and political challenges posed by the epidemic. Focusing on the political dimensions of historical geography, media communications, and popular culture, the case studies chronicle how residents of the three cities, whose fortunes are linked by uneasy historical memories and a vibrant global economy, find themselves abruptly drawing hard lines against porous borders. The volume raises issues pertaining to global politics and regional security, public health and democratic processes, civil society and public culture formation, the role of media in social crises, institutional integrity, and individual agency.Contributors drawn from anthropology, journalism, medicine, and sociology examine the SARS outbreak as representative of the multiple contradictions among contagion, connectivity, and disjuncture that characterize our contemporary world. With avian flu looming over the horizon, the volume focuses attention on diverse human responses, critical self-reflection, and possible steps to meet future challenges.