Abstract
After a thorough survey of the whole community of Spartan Mills in the city of Spartanburg, S. C., an endemic center of pellagra conspicuous for the number of cases of the disease which had originated in it, the surface privies were replaced by a water-carriage system of sewage disposal in the latter part of 1913 and the first half of 1914. Subsequent to this change there has been observed a remarkable reduction in the incidence of pellagra in this community, such that during the pellagra season of 1916 only one new case has appeared among the, approximately, 2,000 residents upon the mill property and this one case originated in a house situated at the very margin of this sewered district and across the street from an unsewered house in which an old case of pellagra resided. Houses situated in the partly unsewered district adjacent to the mill property furnished several new cases of pellagra in 1916. Furthermore, many of the preexisting pellagrins living on the mill property have suffered recurrence of th...
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