Final answer:
Disease mongering is the practice of expanding the perceived boundaries of diseases for market expansion, as seen in the changing views on alcoholism. In contrast, the 1993 rare lung disease outbreak represents a legitimate public health crisis.
Step-by-step explanation:
Disease mongering refers to the practice of widening the diagnostic boundaries of illnesses and aggressively promoting their public awareness to expand the markets for treatment. An example of this can be found in the history of how alcoholism has been perceived. Initially, excessive drinkers were viewed as morally weak, but over time, the condition was medicalized to be seen as a disease that requires treatment, thus expanding the medical industry's scope and the potential for pharmaceutical intervention. On the other hand, a situation like the rare lung disease outbreak in 1993 in the Southwestern United States illustrates a different side of public health, where scientific investigation is genuinely required to identify and treat a new and deadly disease.