OBJECTIVES: To determine the prevalence of multidrug-resistant (MDR) Gram-negative bacilli and extended spectrum β-lactamase (ESBL)-producing isolates in stool specimens obtained from patients hospitalized for acute diarrhoea in a French university hospital. METHODS: Bacteria in stool specimens were screened for ESBL production on Drigalski agar supplemented with ceftazidime, ESBL CHROMagar(®) and CTX CHROMagar(®) media and confirmed by the double-disc synergy test. Genetic detection was performed by PCR and sequencing with bacterial DNA extracted from isolates. RESULTS: The presence of MDR bacteria was markedly high (96 of 303 patients, 31.7%). The majority of MDR bacteria were Enterobacter cloacae (44, 38%) and Escherichia coli (32, 28%). Moreover, the prevalence of ESBL and CTX-M producers among all included patients was 15.8% and 5.9%, respectively. The clone E. coli O25b : H4-ST131 was detected in 63% of CTX-M strains. Surprisingly, 16 carbapenemases (5.3% of patients) were isolated. CONCLUSIONS: The study revealed the wide dissemination of MDR bacteria, including carbapenemase producers, in a French hospital during a non-outbreak situation. Public health efforts to combat emergence and dissemination of MDR organisms need to be developed.
OBJECTIVES: To determine the prevalence of multidrug-resistant (MDR) Gram-negative bacilli and extended spectrum β-lactamase (ESBL)-producing isolates in stool specimens obtained from patients hospitalized for acute diarrhoea in a French university hospital. METHODS: Bacteria in stool specimens were screened for ESBL production on Drigalski agar supplemented with ceftazidime, ESBL CHROMagar(®) and CTX CHROMagar(®) media and confirmed by the double-disc synergy test. Genetic detection was performed by PCR and sequencing with bacterial DNA extracted from isolates. RESULTS: The presence of MDR bacteria was markedly high (96 of 303 patients, 31.7%). The majority of MDR bacteria were Enterobacter cloacae (44, 38%) and Escherichia coli (32, 28%). Moreover, the prevalence of ESBL and CTX-M producers among all included patients was 15.8% and 5.9%, respectively. The clone E. coli O25b : H4-ST131 was detected in 63% of CTX-M strains. Surprisingly, 16 carbapenemases (5.3% of patients) were isolated. CONCLUSIONS: The study revealed the wide dissemination of MDR bacteria, including carbapenemase producers, in a French hospital during a non-outbreak situation. Public health efforts to combat emergence and dissemination of MDR organisms need to be developed.
Authors: Tarek M Gibreel; Andrew R Dodgson; John Cheesbrough; Frederick J Bolton; Andrew J Fox; Mathew Upton Journal: J Clin Microbiol Date: 2012-07-18 Impact factor: 5.948
Authors: A Boutet-Dubois; A Pantel; M-F Prère; O Bellon; N Brieu-Roche; E Lecaillon; A Le Coustumier; A Davin-Regli; L Villeneuve; N Bouziges; E Gleize; R Lamarca; C Dunyach-Remy; A Sotto; J-P Lavigne Journal: Eur J Clin Microbiol Infect Dis Date: 2013-03-15 Impact factor: 3.267
Authors: J Vervoort; M Gazin; M Kazma; T Kotlovsky; C Lammens; Y Carmeli; H Goossens; S Malhotra-Kumar Journal: Eur J Clin Microbiol Infect Dis Date: 2014-07-04 Impact factor: 3.267