molecular characterization of mycobacterium avium complex isolates giving discordant results in accuprobe tests by pcr-restriction enzyme analysis, 16s rrna gene sequencing, and dt1-dt6 pcr.based on cultural and biochemical tests, a total of 84 strains (72 clinical and 12 environmental isolates from the caribbean isles, europe, and the indian subcontinent) were identified as members of the mycobacterium avium complex (mac). they were further characterized with mac, m. avium, and m. intracellulare probes of the accuprobe system, and this was followed by selective amplification of dt6 and dt1 sequences. seventy isolates gave concordant results; 63 were identified as m. avium, 5 were ...19979350730
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