The connection between rodents and plague has led to the accumulation of information regarding the frequency of their association with human habitations, as well as their destructiveness. Studies have been made which throw light on the question of the number of parasites which have been permitted through carelessness to exist in the immediate neighborhood of man. Until these comparatively recent investigations, scarcely any one would have believed how large a number of rodents find a means of livelihood for themselves in our cities and towns, especially those which have a series of docks and wharves. A special report1 of plague eradication work at New Orleans, made by the surgeon in charge of the United States Public Health Service work at that point, contains rather startlingly illuminating facts concerning these parasites.
The total number of rodents captured up to November 13 of the past year runs up to 497,983. Some
THE RODENT PROBLEM OF CITIES. JAMA. 1916;LXVI(2):120–121. doi:10.1001/jama.1916.02580280050026
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