Prevalence of Antimicrobial Resistance and Infectious Diseases in a Hospitalised Migrant Population in Paris, France, a Retrospective Study.

The aim of this study was to estimate the prevalence of anti-microbial resistance (AMR) carriage and its risk factors in hospitalized migrants. Additionally, the prevalence of infectious diseases was evaluated, as well as symptoms of psychological trauma. We conducted a retrospective monocentric cross-sectional study including all migrant patients recently arrived and hospitalised over a one-year period.

Evidence of Sexual Transmission of Extended-Spectrum β-Lactamase-Producing Enterobacterales: A Cross-sectional and Prospective Study.

Background: Extended-spectrum β-lactamase-producing Enterobacterales (ESBL-E) represent a major threat to public health. Little is known on their potential for sexual transmission.

Methods: We recruited individuals at a sexually transmitted infection and human immunodeficiency virus (HIV) outpatient clinic in Paris, France, in whom we evaluated the prevalence of ESBL-E intestinal carriage and, among those testing positive, the proportion with clearance 6 months thereafter.

Spontaneous and postsurgical/traumatic Klebsiella pneumoniae meningitis: two distinct clinico-microbiological entities.

Objectives: To analyze and compare the characteristics and outcomes of spontaneous meningitis (SM) versus postsurgical/traumatic meningitis (PSTM) due to Klebsiella pneumoniae.

Methods: A retrospective multicentric cohort study of all K. pneumoniae meningitis cases managed between January 2007 and May 2018 was carried out in seven university hospitals in the Paris area.

The Diversity of Lipopolysaccharide (O) and Capsular Polysaccharide (K) Antigens of Invasive in a Multi-Country Collection.

is a common cause of sepsis and is particularly associated with healthcare-associated infections. New strategies are needed to prevent or treat infections due to the emergence of multi-drug resistant . The goal of this study was to determine the diversity and distribution of O (lipopolysaccharide) and K (capsular polysaccharide) antigens on a large (>500) global collection of strains isolated from blood to inform vaccine development efforts.

Spread of NDM-5 and OXA-181 Carbapenemase-Producing Escherichia coli in Chad.

We detected for the first time and in isolates from hospitalized patients and healthy volunteers in Chad. These resistance genes were located on IncX3 and IncF plasmids. Despite the large diversity of clones, the identified resistant intestinal isolates belonged mainly to the same sequence type.

Synergistic activity between aztreonam and amoxicillin-clavulanate against Enterobacteriaceae-producing class B and/or class D carbapenemases with or without extended-spectrum -lactamases.

Carbapenemase-producing Enterobacteriaceae have become a major public health concern over the last decade and treatment options are limited. We evaluated the synergistic activity of the combination of aztreonam (ATM) and clavulanate for 41 -lactam-resistant clinical isolates harbouring class B or/and class D carbapenemases combined or not with extended-spectrum -lactamases (ESBLs). The MICs of ATM, with and without amoxicillin-clavulanate (AMC), were determined.

Novel patterns in the molecular epidemiology of KPC-producing Klebsiella pneumoniae in Tucumán, Argentina.

Background: In Argentina, there has been an abrupt increase in KPC-2-producing Klebsiella pneumoniae (K. pneumoniae). Tucumán is a multi-border area, so the rapid dissemination of carbapenem-resistant K.

Molecular epidemiology of ESBL-producing and : establishing virulence clusters.

Objective: To genetically characterize clusters of virulence factors (VFs) among extended spectrum β-lactamase (ESBL)-producing and and assess whether these clusters are associated with genetic determinants or clinical outcomes.

Methods: One hundred forty-eight and 82 . clinical isolates were obtained from 213 patients in Paris, France.

Chlamydia trachomatis screening in urine among asymptomatic men attending an STI clinic in Paris: a cross-sectional study.

Background: The incidence of Chlamydia trachomatis (Ct) urethritis has been increasing for the past 10 years. There is little data regarding the screening of Ct infection in asymptomatic men in France, despite the national recommendation to screen at-risk asymptomatic men under 30 attending Sexually Transmitted Infections (STI) clinics. Recent data from the French surveillance network Rénachla show indeed that systematic screening is still focused on women.

Biofilm formation by ESBL-producing strains of Escherichia coli and Klebsiella pneumoniae.

Objectives: Biofilm production in extended spectrum β-lactamase (ESBL)-producing Enterobacteriaceae provides a favourable environment for the exchange of antibiotic-resistance genes and could facilitate widespread dissemination. We aimed to assess biofilm development in ESBL-producing E. coli and K.

Extended-spectrum β-lactamase-encoding genes are spreading on a wide range of Escherichia coli plasmids existing prior to the use of third-generation cephalosporins.

To understand the evolutionary dynamics of extended-spectrum β-lactamase (ESBL)-encoding genes in Escherichia coli, we undertook a comparative genomic analysis of 116 whole plasmid sequences of human or animal origin isolated over a period spanning before and after the use of third-generation cephalosporins (3GCs) using a gene-sharing network approach. The plasmids included 82 conjugative, 22 mobilizable and 9 non-transferable plasmids and 3 P-like bacteriophages. ESBL-encoding genes were found on 64 conjugative, 6 mobilizable, 2 non-transferable plasmids and 2 P1-like bacteriophages, indicating that these last three types of mobile elements also play a role, albeit modest, in the diffusion of the ESBLs.

Within-a-Day Detection and Rapid Characterization of Carbapenemase by Use of a New Carbapenem Inactivation Method-Based Test, CIMplus.

The dissemination of carbapenemase-producing (CPE) is a major threat to public health. Rapid and accurate detection of CPE is essential for initiating appropriate antimicrobial treatment and establishing infection control measures. The carbapenem inactivation method (CIM), which has good sensitivity and specificity but a detection time of 20 h, was recently described.

Emergence of Plasmid-Mediated Fosfomycin-Resistance Genes among Escherichia coli Isolates, France.

FosA, a glutathione S-transferase that inactivates fosfomycin, has been reported as the cause of enzymatic resistance to fosfomycin. We show that multiple lineages of FosA-producing extended spectrum β-lactamase Escherichia coli have circulated in France since 2012, potentially reducing the efficacy of fosfomycin in treating infections with antimicrobial drug-resistant gram-negative bacilli.

A Long-Term Study of the Diversity of OXA-48-Like Carbapenemase-Producing Bacterial Strains in Infected Patients and Carriers.

Purpose: Since their emergence at the beginning of the century, OXA-48 carbapenemases have spread in the community and in hospitals. To assess the diversity of OXA-48-producing bacterial strains and plasmids in the hospital setting, we studied the strains isolated from patients in three hospitals in the Paris area.

Materials And Methods: All possible OXA-48-like strains were included in the study.

Clinical and microbiological determinants of severe and fatal outcomes in patients infected with Enterobacteriaceae producing extended-spectrum β-lactamase.

Although extended-spectrum β-lactamase (ESBL)-producing Enterobacteriaceae have become a worldwide public health concern, little is known regarding the clinical course of colonized or infected individuals. Our objective was to characterize the determinants of fatal outcomes related to ESBL-producing microorganisms at a large hospital in Paris, France. In 2012-2013, all consecutive patients with clinical samples testing positive for ESBL-producing Enterobacteriaceae at Saint-Antoine Hospital were identified.

Diversity and functionality of plasmid-borne VagCD toxin-antitoxin systems of Klebsiella pneumoniae.

Objectives: To explore the VagCD toxin-antitoxin (TA) systems encoded on plasmids in multiresistant Klebsiella pneumoniae strains.

Methods: Previously sequenced K. pneumoniae plasmids were used for in silico analysis and a collection of 63 resistant K.