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Rate of response of C. difficile spores to taurocholate. C. difficile spores were suspended in water containing 0.1% taurocholate. At 1, 5, 10, 30, and 60 min, spores were serially diluted and plated on BHIS agar in the absence of taurocholate. Colonies were enumerated after overnight growth, and data were compared to those for spores spread on BHIS(TA). Data are means from three independent experiments, and error bars represent 1 standard deviation from the mean.
