Chapter

On the Mode of the Communication of Cholera

Philip N. Johnson-Laird

in How We Reason

Published in print October 2008 | ISBN: 9780199551330
Published online March 2012 | e-ISBN: 9780191701580 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199551330.003.0027
On the Mode of the Communication of Cholera

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This chapter explores how Dr. John Snow reasoned in solving the puzzle of cholera's mode of communication. His reasoning was the secret that led him to discover the mechanism of cholera's transmission prior to any knowledge of bacteria. Snow's theory established a chain of causation by physical contact that explored both the transmission of the disease and its pathology. Snow realized that his theory gave rise to practical measures to forbid the spread of the disease. It was necessary to block the fecal-oral route. His clarification of cholera was an exemplary case of scientific reasoning.

Keywords: Dr. John Snow; reasoning; cholera; mode of communication

Chapter.  4988 words.  Illustrated.

Subjects: Cognitive Psychology

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