FIG. 4.
Entry of M. marinum into the fish monocytic cell line CLC (A) and the murine macrophage cell line J774A.1 (B) relative to M. smegmatis at 30 min postinfection. Entry of M. smegmatis was arbitrarily set at 1. Data points and error bars represent the means and standard deviations, respectively, of assays done in triplicate from a representative experiment.