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A clone carrying a plasmid with the mpb-64 gene and 3 flanking sequences (plasmid pMBA122) was detected during the screening of a Mycobacterium bovis genomic library with sera from infected cattle. When the pMBA122 insert was used as a probe in Southern blots against Pvull-digested mycobacterial DNA, it distinguished the different M. tuberculosis complex species. This probe hybridized with a 7-kb...
Tuberculosis has been recently diagnosed in four wild seals found stranded in the Atlantic coast of Argentina. By bacteriological studies and IS6110 hybridization, these isolates were characterized as belonging to the Mycobacterium tuberculosis complex. A genetic characterization using RFLP (Restriction fragment length polymorphism) and a species-specific probe of M. tuberculosis, called mtp40,...
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