The epidemiology of such a disease as pellagra offers unusual difficulties, and the results readily lead to misinterpretation unless they are analyzed with rare judgment. The epidemiology of pellagra has presented facts not in accord with the apparently well established belief that the disease is due essentially to a nutritional deficiency. The history of the disease, its limited geographic distribution, its peculiarities of age and sex incidence, its confinement, at least in Europe, rather closely to a certain class of population, and some other features have raised doubts as to whether, after all, the disease might not be due to some infectious process.
The lamented Goldberger and his co-workers of the Public Health Service present, in a recently issued bulletin of the Hygienic Laboratory, an important study of certain features of the epidemiology of pellagra.1 This is the culmination of a series of studies, some of the results of
THE EPIDEMIOLOGY OF PELLAGRA. JAMA. 1930;94(9):637-638. doi:10.1001/jama.1930.02710350037012