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Ralph Spaeth, M.D.
JAMA. 1940;115(15):1295-1296. doi:10.1001/jama.1940.02810410061030.
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To the Editor:—  In reference to the editorial in The Journal, August 24, page 618, to the effect that "human beings do not acquire a demonstrable immunity against tetanus toxin as a result of environmental exposure," I wish to call attention to the article by TenBroeck and Bauer (Studies on the Relation of Tetanus Bacilli in the Digestive Tract to Tetanus Antitoxin in the Blood, J. Exper. Med.37:479 [April] 1923), published from the Department of Pathology of Peiping Union Medical College, Peiping, China.These investigators were interested in finding an explanation for the low incidence of tetanus in China, where approximately a third of the population is eliminating tetanus bacilli in the stool (TenBroeck, Carl, and Bauer, J. H.: ibid.36:261 [Sept.] 1922) and where human feces are so generally distributed.Their conclusions, based on titration studies, were that: 1. The serums of twenty-six persons who carried


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