McKenzie, Robin Comparative safety and immunogenicity of two attenuated enterotoxigenic Escherichia coli vaccine strains in healthy adults. [electronic resource] - Infection and immunity Feb 2006 - 994-1000 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial; Research Support, Non-U.S. Gov't ISSN: 0019-9567 Standard No.: 10.1128/IAI.74.2.994-1000.2006 doi Subjects--Topical Terms: AdolescentAdultAntibodies, Bacterial--analysisAntibody-Producing CellsDouble-Blind MethodEnterotoxins--metabolismEscherichia coli--immunologyEscherichia coli Infections--prevention & controlEscherichia coli Vaccines--administration & dosageFeces--microbiologyHumansImmunoglobulin A--analysisImmunoglobulin G--bloodMiddle AgedVaccines, Attenuated--administration & dosage