This means with every application of a specific antibiotic, the survival of a few bacteria which already got a resistance gene against the substance is promoted, and the concerning bacterial population amplifies.
Isto significa que con cada aplicación de antibióticos específicos, poténciase a supervivencia dunhas poucas bacterias, que xa adquiriron xenes de resistencia contra a substancia, e a poboación de bacterias preocupantes aumenta.