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Effect of DMN-Tre labeling on the intracellular growth of RFP-Mtb H37Rv. Macrophages were infected with RFP-expressing Mtb H37Rv with or without prelabeling with DMN-Tre. The intracellular Mtb growth was assessed based on the increase in intensity of the fluorescent signal measured from the infected macrophages on day 0 and day 4. Growth at day 0 was set as 0%. Error bars represent standard error (SE), n = 4.
