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Construction and characterization of a Vi-positive variant of the Salmonella typhi live oral vaccine strain Ty21a.
The viaB locus coding for the Vi antigen of Salmonella typhi Ty2 was cloned on a 40.6-kilobase fragment into the cosmid vector pHC79. The live, oral, attenuated Vi-negative S. typhi Ty21a vaccine strain was transformed with the recombinant cosmid encoding the viaB locus. Homologous recombination of...
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| Main Authors: | , , , , , |
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| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
1989
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC259918/ https://ncbi.nlm.nih.gov/pubmed/2807550 |
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