Immunogenicity of Salmonella typhi Ty21a vaccine for young childrenJames R. Murphy, Myron M. Levine, Steven S. Wasserman et al.|Infection and Immunity|1991Cited by 56
Characteristics of Humoral and Cellular Immunity to Salmonella typhi in Residents of Typhoid-Endemic and Typhoid-Free RegionsJames R. Murphy, Myron M. Levine, Shahida Baqar et al.|The Journal of Infectious Diseases|1987Cited by 48
Immunity to Salmonella typhi: considerations relevant to measurement of cellular immunity in typhoid-endemic regions.James R. Murphy, Myron M. Levine, Alf A. Lindberg et al.|PubMed|1989Cited by 31