Fig. 2. Examples of zones of clearing. (A): Representation of susceptibility filter disk application of MV and of 2a and 2b. (B): Representation of agar well application method of PF and of 1a and 1b. The silver and copper salts are also tested. One can see the yellow coloration in the plates of the diffusion of the proflavine from the application center well. Sample is for P. aeruginosa.