Live vaccines

Drug – bio-affecting and body treating compositions – Whole live micro-organism – cell – or virus containing – Genetically modified micro-organism – cell – or virus

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424 931, 424 934, 4241841, 4242581, 4242001, 4242011, 4242031, A61K 3500, A61K 3902, A61K 39112

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active

058515194

ABSTRACT:
The present invention discloses a novel approach to attenuating bacteria and for their use as live vaccines. The vaccines can be used in human and animal medicine.
In particular, there is disclosed a method of attenuating a bacteria by mutating a gene concerned with the regulation of one or more genes concerned with expression of outer membrane proteins, particularly porin proteins.

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