The antibiotic-resistant bacterium is a leading cause of hospital-associated infections. Despite surveillance and infection control efforts, new strains are regularly isolated from health care facilities worldwide. In a mouse model of urinary tract infection, we found that mice infected with displayed high bacterial burdens in urine for several weeks. Two months after the resolution of infection, inserting a catheter into the bladder of mice with resolved infection led to the resurgence of a same-strain urinary tract infection in ~53% of the mice within 24 hours. We identified intracellular bacteria in the bladder epithelial cells of mice with resolved infection, which we propose could act as a host reservoir that was activated upon insertion of a catheter, leading to a resurgent secondary infection.
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| http://dx.doi.org/10.1126/scitranslmed.abn8134 | DOI Listing |
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