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Non symmetric movement-effect of treatment proportions for 100 days stay. Effect of treatment on the rate of spread (in percent) of resistance. Graph (a) corresponds to the case when, m =0.5 = p 21 /p 12 , p 12 = 0.01, while Graph (b) corresponds to the case when m =0.1 = p 21 /p 12 , p 12 = 0.01.
