Figure 2.

Growth of M. abscessus S (Mabs S) and R (Mabs R) variants in different cells. Wild-type murine (a) or human (b) Mϕ were infected with S and R variants. Amikacin treatment was applied to avoid extracellular growth (see Experimental procedures). The number of CFU was determined at the indicated times p.i. (c,d) Wild-type and cftr^−/− murine Mϕ were infected as mentioned above. Intracellular growth was similar in murine wild-type Mϕ and in murine Mϕ knock-out for cftr (cftr^−/−). Error bars indicate the s.e.m., based on the results from three independent experiments.