Xavier Bertrand
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View article: Residual antimicrobials in food can select for antimicrobial resistance
Residual antimicrobials in food can select for antimicrobial resistance Open
View article: Rethinking the role of animals in antimicrobial resistance
Rethinking the role of animals in antimicrobial resistance Open
International audience
View article: Evaluation of antibiotic prescribing for the treatment of male community-acquired urinary tract infections using reimbursement data
Evaluation of antibiotic prescribing for the treatment of male community-acquired urinary tract infections using reimbursement data Open
Introduction Urinary tract infection (UTI) in men, although less common than in women, present specific diagnostic and therapeutic challenges. This study aims to evaluate the prescribing practices of general practitioners (GPs) for male UT…
View article: A time series analysis approach to quantify change in antibiotic resistance and antibiotic consumption during COVID-19 epidemics: a multicentre cross-national ecological study on behalf of QUantifying change in Antibiotic Resistance, ANTibiotic use, and INfection control during COVID-19 Epidemics study project
A time series analysis approach to quantify change in antibiotic resistance and antibiotic consumption during COVID-19 epidemics: a multicentre cross-national ecological study on behalf of QUantifying change in Antibiotic Resistance, ANTibiotic use, and INfection control during COVID-19 Epidemics study project Open
The COVID-19 pandemic was associated with higher usage of broad-spectrum antibiotics and higher incidence of multidrug-resistant bacteria, with great variability by countries. These results could support international action plans that emb…
View article: Urine flow cytometry in older adults urinary tract infection diagnosis: is it time to reevaluate thresholds for men and women?
Urine flow cytometry in older adults urinary tract infection diagnosis: is it time to reevaluate thresholds for men and women? Open
View article: How to establish a hospital wastewater surveillance program for antimicrobial resistance: Current experience and future knowledge gaps
How to establish a hospital wastewater surveillance program for antimicrobial resistance: Current experience and future knowledge gaps Open
View article: Genomic epidemiology of third-generation cephalosporin-resistant Escherichia coli from companion animals and human infections in Europe
Genomic epidemiology of third-generation cephalosporin-resistant Escherichia coli from companion animals and human infections in Europe Open
View article: Whole-cell aptamer-based techniques for rapid bacterial detection: Alternatives to traditional methods
Whole-cell aptamer-based techniques for rapid bacterial detection: Alternatives to traditional methods Open
View article: Proposed macroscopic quality indicators of antimicrobial stewardship in primary care: An observational study
Proposed macroscopic quality indicators of antimicrobial stewardship in primary care: An observational study Open
Even in departments with low antibiotic consumption, our macroscopic quality indicators help to identify antibiotic stewardship targets for the most common community-based infections,. They are easy to calculate from quantitative data with…
View article: Improved conditions for the synthesis of tertiary fluorides using a KF/H2SO4 combination
Improved conditions for the synthesis of tertiary fluorides using a KF/H2SO4 combination Open
View article: High-risk clones of Pseudomonas aeruginosa contaminate the drinking water networks of French cities
High-risk clones of Pseudomonas aeruginosa contaminate the drinking water networks of French cities Open
Pseudomonas aeruginosa is a major opportunistic pathogen responsible for severe infections in immunocompromised patients. The contamination of drinking water networks (DWNs) with this pathogen is underestimated, as it is mostly in the stat…
View article: Synthèse d'halogénures tertiaires aliphatiques
Synthèse d'halogénures tertiaires aliphatiques Open
Halides have very interesting properties in organic chemistry. Organic molecules that bear halides have modified properties which make them interesting in many fields of chemistry such as pharmaceuticals, agrochemicals, and material scienc…
View article: Yeast Biodiversity of Karst Waters: Interest of Four Culture Media and an Improved MALDI-TOF MS Database
Yeast Biodiversity of Karst Waters: Interest of Four Culture Media and an Improved MALDI-TOF MS Database Open
View article: Genomic Epidemiology of Third-Generation Cephalosporin-Resistant Escherichia Coli from Companion Animals and Human Infections in Europe
Genomic Epidemiology of Third-Generation Cephalosporin-Resistant Escherichia Coli from Companion Animals and Human Infections in Europe Open
View article: French healthcare students and antibiotics: are they ready to promote their appropriate use?
French healthcare students and antibiotics: are they ready to promote their appropriate use? Open
Objectives French healthcare students are required to carry out primary prevention interventions as part of the Healthcare Service by Healthcare Students (HSHS). The purpose of this study was to explore students’ perceptions of preparednes…
View article: Population structure of community-acquired extended-spectrum beta-lactamase producing Escherichia coli and methicillin resistant Staphylococcus aureus in a French region showed no difference between urban and rural areas
Population structure of community-acquired extended-spectrum beta-lactamase producing Escherichia coli and methicillin resistant Staphylococcus aureus in a French region showed no difference between urban and rural areas Open
Antimicrobial resistance is a global health issue and extended-spectrum β-lactamase producing Escherichia coli (ESBL-Ec) and methicillin-resistant Staphylococcus aureus (MRSA) are of particular concern. Whole genome sequencing analysis of …
View article: Determination of Polystyrene Microplastic in Soil by Pyrolysis – Gas Chromatography – Mass Spectrometry (pyr-GC-MS)
Determination of Polystyrene Microplastic in Soil by Pyrolysis – Gas Chromatography – Mass Spectrometry (pyr-GC-MS) Open
International audience
View article: Synthesis of Tertiary Fluorides through an Acid-Mediated Deoxyfluorination of Tertiary Alcohols
Synthesis of Tertiary Fluorides through an Acid-Mediated Deoxyfluorination of Tertiary Alcohols Open
The combination of methanesulfonic acid and potassium bifluoride is reported for the deoxyfluorination of tertiary alcohols. Under metal-free conditions that use readily available, cheap, and easy-to-handle reagents, a range of tertiary al…
View article: Genome Analysis of Methicillin-Resistant and Methicillin-Susceptible Staphylococcus aureus ST398 Strains Isolated from Patients with Invasive Infection
Genome Analysis of Methicillin-Resistant and Methicillin-Susceptible Staphylococcus aureus ST398 Strains Isolated from Patients with Invasive Infection Open
Background: Using genomic data, we determined the origin of MRSA ST398 isolates responsible for invasive infection in patients with no known livestock contact. Methods: We sequenced the genome of seven MSSA and four MRSA ST398 isolates fro…
View article: Genotypic Characteristics and Antimicrobial Resistance of Escherichia coli ST141 Clonal Group
Genotypic Characteristics and Antimicrobial Resistance of Escherichia coli ST141 Clonal Group Open
Escherichia coli ST141 is one of the ExPEC lineages whose incidence is rising in France, even if no epidemic situation involving multidrug resistant isolates has been reported so far. Nonetheless, in a 2015–2017 monocentric study conducted…
View article: Genome-based typing reveals rare events of patient contamination with Pseudomonas aeruginosa from other patients and sink traps in a medical intensive care unit
Genome-based typing reveals rare events of patient contamination with Pseudomonas aeruginosa from other patients and sink traps in a medical intensive care unit Open
View article: Antibiotic resistance in elderly patients: Comparison of Enterobacterales causing urinary tract infections between community, nursing homes and hospital settings
Antibiotic resistance in elderly patients: Comparison of Enterobacterales causing urinary tract infections between community, nursing homes and hospital settings Open
Patients living in nursing homes should not be considered more at risk of, infection by multi-drug resistant E. coli than patients living in community setting. Screening of multi-drug resistant K. pneumoniae could be of interest for nursin…
View article: Proposition of Simple Qualitative Indicators of Antimicrobial Stewardship in Primary Care: An Observational Study
Proposition of Simple Qualitative Indicators of Antimicrobial Stewardship in Primary Care: An Observational Study Open
View article: Epidemiology and risk factors of nasal carriage of Staphylococcus aureus CC398 in two distinct cohorts in France
Epidemiology and risk factors of nasal carriage of Staphylococcus aureus CC398 in two distinct cohorts in France Open
Background We aimed to determine the prevalence and factors associated with nasal carriage of Staphylococcus aureus CC398 in the community and among hospitalized patients. Methods We conducted a prospective cohort study in a French univers…
View article: Genome-based typing reveals rare events of patient contamination with Pseudomonas aeruginosa from other patients and sink traps in a medical intensive care unit
Genome-based typing reveals rare events of patient contamination with Pseudomonas aeruginosa from other patients and sink traps in a medical intensive care unit Open
Background We used genome-based typing data with the aim of identifying the routes of acquisition of Pseudomonas aeruginosa (PA) by patients hospitalized in a medical intensive care unit (MICU) over a long period in a non-epidemic context.…
View article: High prevalence of Pseudomonas aeruginosa carriage in residents of French and German long-term care facilities
High prevalence of Pseudomonas aeruginosa carriage in residents of French and German long-term care facilities Open
We found an unexpected high prevalence of PA intestinal carriage in LTCF residents mainly associated with individual-level factors. Our study revealed a polyclonal PA population structure suggesting that individual acquisition is more freq…
View article: One Health compartmental analysis of ESBL-producing <i>Escherichia coli</i> on Reunion Island reveals partitioning between humans and livestock
One Health compartmental analysis of ESBL-producing <i>Escherichia coli</i> on Reunion Island reveals partitioning between humans and livestock Open
Background Extended-spectrum β-lactamase-producing Escherichia coli (ESBL-Ec) is a major cause of infections worldwide. An understanding of the reservoirs and modes of transmission of these pathogens is essential, to tackle their increasin…
View article: Quantification of Polystyrene Microplastic by Pyrolysis-GC-MS is Affected by the Polymer Molecular Weight and Soil Matrix
Quantification of Polystyrene Microplastic by Pyrolysis-GC-MS is Affected by the Polymer Molecular Weight and Soil Matrix Open
View article: Hydrohalogenation of Unactivated Alkenes Using a Methanesulfonic Acid/Halide Salt Combination
Hydrohalogenation of Unactivated Alkenes Using a Methanesulfonic Acid/Halide Salt Combination Open
The hydrochlorination, hydrobromination, and hydroiodination of unactivated alkenes using methanesulfonic acid and inorganic halide salts (CaCl2, LiBr, LiI) in acetic acid are reported. This approach uses readily available and inexpensive …
View article: Nosocomial cluster of carbapenemase-producing Enterobacter cloacae in an intensive care unit dedicated COVID-19
Nosocomial cluster of carbapenemase-producing Enterobacter cloacae in an intensive care unit dedicated COVID-19 Open