FIG 1.

Kinetics of colonization of M. abscessus in aerosolized or intravenously infected BALB/c mice. (A) Mice were aerosolized by 4 × 10⁷ CFU/ml of R-M. abscessus. Animals were then sacrificed at days 1, 3, 8, and 27 prior to CFU counting in the liver, spleen, and lungs. Results are expressed as the log units of CFU. (B) Mice were challenged i.v. with 10⁶ CFU of R-M. abscessus. Animals were then sacrificed at days 1, 15, and 30 to determine the CFU counts in the different organs. Results are expressed as mean log₁₀ CFU from 2 to 3 independent experiments (n = 5 to 7 mice for each time point). Error bars represent the standard errors of the means (SEM).