RT Journal Article SR Electronic A1 Buckley, Rita T1 Preventing Resistance — The Role of Optimized Dosing JF MD Conference Express YR 2011 FD SAGE Publications VO 11 IS 12 SP 19 OP 20 DO 10.1177/155989771112012 UL http://mdc.sagepub.com/content/11/12/19.abstract AB The rapid emergence of antibiotic resistance is a major public health concern [Zhang L et al. Appl Environ Microbiol 2011]. This article discusses five questions of resistant bacteria in the gut: Their possible presence without antibiotic exposure; Whether there is selection of resistant gut bacteria during antimicrobial exposure; Whether there is selection of resistance during systemic treatment for other infections; Whether it is possible to avoid or minimize selection; How optimization of treatment relates to selection of resistance in the gut.