Toxicity of Bacterial Exotoxins by the Oral Route

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Science  15 Apr 1960:
Vol. 131, Issue 3407, pp. 1100-1101
DOI: 10.1126/science.131.3407.1100


Reports to the contrary notwithstanding, both tetanus and diphtheria toxins are demonstrably orally toxic. The significance of this finding is considered in relation to the definition of those factors which are determinants of the potency of bacterial protein toxins by the oral route.