Fig. (1) Biofilm production in microtitre plate assay by community carriage isolates of S.aureus in TSB added of sub-inhibitory concentrations of rifampin, minocycline and rifampin+ minocycline. Dashed line indicates the cut-off OD (ODc) value. Average value of OD of control culture without drug: H03, H39 and H43 < 0.300; H56=1.554.