Mycobacterial growth in infected Macrophages as measured by colony counting and qPCR.

<p>Growth of <i>M. tuberculosis</i> (A), <i>M. a. avium</i> (B), and <i>M. a. paratuberculosis</i> (C) in <i>in vitro</i> infected human macrophages as monitored over time by colony counting (solid line) and qPCR (dashed line). Error bars represent 95% confidence intervals.