Immunogenicity of Salmonella typhi Ty21a vaccine for young children.
Murphy JR, Grez L, Schlesinger L, Ferreccio C, Baqar S, Muñoz C, Wasserman SS, Losonsky G, Olson JG, Levine MM.
Murphy JR, et al. Among authors: levine mm.
Infect Immun. 1991 Nov;59(11):4291-3. doi: 10.1128/iai.59.11.4291-4293.1991.
Infect Immun. 1991.
PMID: 1937790
Free PMC article.
Clinical Trial.