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August 1910

THE CONTROL OF TYPHOID FEVER IN CITY AND COUNTRYWITH A DESCRIPTION OF A MODIFIED HESSE'S MEDIUM FOR THE DETECTION OF THE TYPHOID BACILLUS IN EXCRETA AND FLUID FOODS

Arch Intern Med (Chic). 1910;VI(2):121-138. doi:10.1001/archinte.1910.00050300002001
Abstract

Before describing the various methods for the control of the spread of typhoid fever and the assistance rendered to these measures by means of a modified Hesse's medium, we shall first describe the manufacture of this medium and its uses and limitations in the detection of the typhoid bacillus.

MANUFACTURE OF MEDIUM  Jackson1 in his article describes very thoroughly the evolution of a differential medium for the typhoid bacillus but as the latest medium seems to be the most successful, we shall simply describe Hesse's semifluid medium, including our own modification, quoting from the aforementioned article in a somewhat condensed manner.The formula of the medium is as follows:Before using, the agar should be dried at 105 C. for half an hour to free it from all moisture. This medium should be kept in an ice-chest, the air of which is artificially provided with moisture.The

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