Before revision: In epidemiology, a clinical case definition, a clinical definition, or simply a case URL Disease Clusters: An Overview Case Definition from the United States Department of Health and Human Services lists the clinical criteria by which public health professionals determine whether a person's illness is included as a case in an outbreak investigation—that is, whether a person is considered directly affected by an outbreak.
After revision: In epidemiology, a clinical case definition, a clinical definition, or simply a case definition Disease Clusters: An Overview Case Definition from the United States Department of Health and Human Services lists the clinical criteria by which public health professionals determine whether a person's illness is included as a case in an outbreak investigation—that is, whether a person is considered directly affected by an outbreak.