Publisher's Synopsis
Excerpt from On Dengue
It is for the most part a difficult task to point out the precise origin of any form of disease, and with respect to what are called, vaguely, general epidemics, the attempt has been notoriously futile. Local epidemics, however, among which dengue must of course be ranked, if its contagious nature be denied, are always, as pneu monia typhoides, for example, limited to particular season and tem perature; or, as in the case of bilious remittent, dysentery, and yellow fever, to certain localities and circumstances Of soil and sur face conjointly with season and temperature. But dengue has, in its brief career and well known history, shown no correspondence with any Of these, being neither limited by season, local position, nor atmospheric change. Its gradual progression from one place to another, allowing abundant room for the anticipation Of its arrival, and the fact that it followed, from the time when it first appeared upon the American coast, the great routes of commercial inter course, are strong evidence in favour of its contagiousness. But there are positive and marked facts which seem to us to leave no room for reasonable doubt on the subject.
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