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Expression of hly in five L. monocytogenes strains in the VBNC state after 2, 4, 6, 8 and 10 h incubation at 32 °C in BHI containing rifampicin detected by RT-PCR. The positive control (lane pos) was incubated in BHI without rifampicin for 10 h. Experiments were performed at least twice.
