Specific immunoglobulin A-secreting cells in peripheral blood of humans following oral immunization with a bivalent Salmonella typhi-Shigella sonnei vaccine or infection by pathogenic S. sonneiLillian Van De Verg, Myron M. Levine, Steven S. Wasserman et al.|Infection and Immunity|1990Cited by 74
Immunogenicity of Salmonella typhi Ty21a vaccine for young childrenJames R. Murphy, Myron M. Levine, L Grez et al.|Infection and Immunity|1991Cited by 56
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