Lactobacillus urinary tract infection (UT!) seems exceptionally reported. Nevertheless, with the introduction of a chromogenic medium UriSelect 4, eight cases of UTI in old women (mean of 81.2 years) mediated by Lactobacillus delbrueckii identified by DNA sequencing were reported between 2007 and 2009. (C) 2010 Elsevier Masson SAS. All rights reserved.