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There have been few greater surprises to sanitarians than the singular prevalence of typhoid fever during the past year in the District of Columbia. In the autumn of 1905 a modern sand filter, designed by and constructed under the supervision of some of the most eminent sanitary engineers in this country, was put in operation in the city of Washington. The particular mode of treatment adapted for the water of the Potomac River, the character of the plant and the details of operation had been long and thoroughly discussed and studied by qualified experts. It was confidently expected, therefore, that the operation of this filter would be followed by the same results that have been observed in Lawrence, Mass., Albany, N. Y., and other places in this country where a filtration plant of similar character has been installed. Surprise and consternation resulted when, in July, 1906, the number of cases
TYPHOID FEVER IN THE DISTRICT OF COLUMBIA.. JAMA. 1907;XLVIII(17):1434-1436. doi:10.1001/jama.1907.02520430046004