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Gen-Probe Rapid Diagnostic System for the Mycobacterium avium complex does not distinguish between Mycobacterium avium and Mycobacterium paratuberculosis.

National Veterinary Institute, Oslo, Norway.

ABSTRACT

Three reference and 16 field strains of Mycobacterium paratuberculosis were tested with the Gen-Probe Mycobacterium avium complex DNA probe (Gen-Probe Inc., San Diego, Calif.). All reference strains and 12 of 16 field strains gave positive hybridization results with the probe. This study shows that the M. avium complex probe does not distinguish between M. avium and M. paratuberculosis and indicates heterogeneity in the 16S rRNA gene of M. paratuberculosis.