| PATENT ASSIGNEE'S COUNTRY | USA |
| UPDATE | 03.99 |
| PATENT ASSIGNEE | This data is not available for free |
| PATENT CLAIMS | An avirulent Vibrio cholerae strain of a non-O1 serogroup having a DNA comprising the cholera toxin core & the RS1 sequences of cholera toxin locus deleted, & further having a DNA encoding a resistance to Hg, & the DNA encoding the cholera toxin B subunit re-inserted in the chromosome |
| PATENT PHOTOCOPY | Available on request |
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