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  • Title: Urease activity does not contribute dramatically to persistence of Mycobacterium bovis bacillus Calmette-Guérin.
    Author: Reyrat JM, Lopez-Ramirez G, Ofredo C, Gicquel B, Winter N.
    Journal: Infect Immun; 1996 Sep; 64(9):3934-6. PubMed ID: 8751954.
    Abstract:
    Multiplication of BCGure-, an isogenic urease-negative mutant of Mycobacterium bovis BCG constructed by allelic exchange (J. M. Reyrat, F. X. Berthet, and B. Gicquel, Proc. Natl. Acad. Sci. USA 92:8768-8772, 1995), was examined in human macrophages and mice. Although ureolytic activity was not essential to BCGure-growth, a slight decrease in the multiplication and persistence of the mutated strain compared with wild-type BCG was observed in lungs of infected mice.
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