A case of treponematosis from pre-Columbian Chaco Canyon, New Mexico

Abstract

Although numerous cases of treponemal infection have been identified in prehispanic New World skeletal remains, none has been reported from Chaco Canyon, New Mexico. Chaco Canyon was the epicentre of a broad culture system that spanned the Four Corners region of the pre-Columbian Southwestern United States. A burial recovered from the central Great House of Chaco Canyon, Pueblo Bonito, exhibits lesions indicative of treponematosis. However, the pathological condition of this individual has heretofore been only tentatively diagnosed because the skeleton was collected from a commingled context and distributed across four separate catalogue numbers. Now reassociated, these remains exhibit a pattern of pathological changes strongly indicative of treponemal disease. This case not only adds to the growing body of literature on the clinical expression and geographic distribution of pre-Columbian treponematosis, but also demonstrates the utility of painstaking reassociation of commingled human remains. Copyright © 2009 John Wiley & Sons, Ltd.