John Snow, Asiatic Cholera and the inductive-deductive method
Lecture 5: Disseminated source outbreaks
“The duration of cholera in a place is usually in direct proportion to the number of the population”
We saw in Lecture 3 that Snow deduced by the presence of an incubation period that the morbid poison of cholera needed time to replicate. Now he makes a further deduction (page 56).
Snow deduced that it must resemble a cell as it reproduces itself inside …