Ott opens her treatment of the cultural, social and economic evolution of tuberculosis in the U.S in the mid-nineteenth century, although she refers back to antecedent historical events. The study follows how the evolving principles of bacteriology were applied to a syndrome the medical world did not recognize as having a single etiology. Tuberculosis did not fit the epidemiologic patterns of epidemic diseases as recognized by public health specialists.

Ott focuses heavily on the economics of the illness, as well as on its changing social status. Her final chapter examines the contemporary meaning of the disease as it once again is heralded as a public health problem in the U.S.