Table 2.

Resistance in terms of viability.

Conc (µg/ml)	DSM 10140	DSM 20083	DSM 20219
2	−0.49	0.815 ± 0.162	−0.51
10	−0.65	0.76 ± 0.028	−0.461
15	−0.428	1.06 ± 0.084	−0.193
50	−0.98	1.243 ± 0.046	−0.193
100	−0.12	0.705 ± 0.106	−0.461

B. adolescentis, B. animalis and B. longum were grown in the presence of different concentrations of RIF (2–100 µg/mL). The cells were withdrawn, spread on a plate and counted.