Prevalence of oropharyngeal antibiotic-resistant flora among residents of aged care facilities: a pilot study.

Residents in 11 long-term care facilities, and presenting to a single tertiary hospital site, were sampled to estimate prevalence of oropharyngeal colonization with resistant Gram-negative bacteria. From 124 residents, only one isolate (0.8%; 95% confidence interval 0.0%, 4.4) was multi-resistant (an extended-spectrum β-lactamase producing Escherichia coli) indicating that different treatment recommendations for respiratory infections in this population may not be justified.