The Diffusion of Cholera in the United States in 1866
This map depicts “the diffusion of cholera in the United States in 1866 showing the
growing effect of the maturing transport system (river, rail, and sail) on the diffusion of this disease compared to the 1832 epidemic.” (Koch, p. 259)
In 1832, cholera typically entered the U.S. from northeastern seaports and from Canada, and then traveled down the east coast or west along the Erie Canal and then down the Mississippi. By 1866, New Orleans was also a point of entry, and the disease traveled by both rail and river systems along the lines of the transportation network linking major cities.
The image was scanned from Fig 10.6 in Tom Koch (2005). Cartographies of Disease. ESRI Press, Redlands, California.
The image was published in Pyle, G.F (1969). “The Diffusion of Cholera in the United States in the Nineteenth Century.” Geographic Analysis 1 (1): 59-75.
Copyright © 1969 by the Ohio State University Press.
All rights reserved