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April 22, 1911

I. Report on an Outbreak of Typhoid Fever at Omaha, Neb. (1909-1910).

JAMA. 1911;LVI(16):1218. doi:10.1001/jama.1911.02560160060032

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Abstract

L. L. Lumsden reports an investigation of an epidemic of typhoid in Omaha, lasting from November, 1909, to March, 1910, a brief account of which was given in The Journal, May 7, 1910, p. 1555. After eliminating, through a study of the statistics of 105 cases, such sources of infection as milk, ice, etc., a detailed account is given of the probabilities of water as the carrier. The public supply is obtained from the Missouri River at two points, one at some distance above Omaha, and the other at the city. The water is stored for about six hours, and alum is added for a coagulant. Sewage enters the river about 8 miles above the city intake, as well as at a number of places along the banks at no great distance from the city. The number of cases of typhoid fever among persons using water from this latter intake

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