Figure 2From: Evaluation of a microcolony growth monitoring method for the rapid determination of ethambutol resistance in Mycobacterium tuberculosis Relative growth rates of reference strains (as % of 0 mg/L control) between days 7 and 9 after transfer to EMB on day 7. *For strain 4 results are shown relative to the pre-exposure growth rate due to contamination of the control. Error bars represent the standard deviation of the relative growth rate of individual microcolonies.Back to article page