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Culture panel tested for culturing Mycobacterium avium subsp. paratuberculosis from wood bison feces. Variations included the M. avium subsp. paratuberculosis concentration method (1), the decontamination method (2), and the type of medium and supplements used (3). The nine final culture variations for each of the five samples are shown in light gray (HEY) and dark gray (TREK). VAN, vancomycin, amphotericin B, and nalidixic acid; HEY, Herrold's egg yolk; FBS, fetal bovine serum.
