Antibiotics are essential in the fight against bacterial infections and save countless lives. However, due to the overconsumption and frequent misuse of antibiotics, resistant bacteria are increasingly common. But even when no resistant bacteria are involved, infections sometimes flare up again after a seemingly successful course of antibiotics. the number of tolerant cells in a population increases as bacteria are exposed to antibiotics more often: daily doses have a bigger impact than weekly doses. Fortunately, the number of cells with multi-drug tolerance decreases again as soon as the antibiotic treatment ends.
— source kuleuven.be | 2016