Killed but metabolically active Salmonella typhimurium: application of a new technology to an old vector.

Abstract excerpt

Previous studies have shown that attenuated salmonellae utilized as vaccine vectors engender strong immune responses; however, balancing immunogenicity with reactogenicity remains problematic. Recent work in other bacteria has shown that photochemical treatment of DNA excision repair mutants ( Delta uvrAB) renders organisms "killed but metabolically active" (KBMA). Here, we extend this concept to Salmonella...

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