First name: Olivier
  Last name: Clermont
  Function: Research engineer
  Email: olivier.clermont

Research interest

Exhaustive list of publications


Guk J, Bridier-Nahmias A, Magnan M, Grall N, Duval X, Clermont O, Ruppé E, d'Humières C, Tenaillon O, Denamur E, Mentré F, Guedj J, Burdet C, Csg
Modeling the bacterial dynamics in the gut microbiota following an antibiotic-induced perturbation.
CPT: pharmacometrics & systems pharmacology 2022, 11, 906-918.

de Lastours V, El Meouche I, Chau F, Beghain J, Chevret D, Aubert-Frambourg A, Clermont O, Royer G, Bouvet O, Denamur E, Fantin B, CG
Evolution of fluoroquinolone-resistant Escherichia coli in the gut after ciprofloxacin treatment.
International journal of medical microbiology: IJMM 2022, 312, 151548.

Long GS, Klunk J, Duggan AT, Tapson M, Giuffra V, Gazzè L, Fornaciari A, Duchene S, Fornaciari G, Clermont O, Denamur E, Golding GB, Poinar H
A 16th century Escherichia coli draft genome associated with an opportunistic bile infection.
Communications Biology 2022, 5, 599.

Royer G, Clermont O, Condamine B, Mercier-Darty M, Laouénan C, Lefort A, Denamur E, de Lastours V, CaSG
O-Antigen Targeted Vaccines Against Escherichia coli May Be Useful in Reducing Morbidity, Mortality, and Antimicrobial Resistance.
Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America 2022, 74, 364-366.

Rondinaud E, Clermont O, Petitjean M, Ruppe E, Esposito-Farèse M, Nazimoudine A, VRsg, Coignard B, Matheron S, Andremont A, Denamur E, Armand-Lefevre L
Acquisition of Enterobacterales carrying the colistin resistance gene mcr following travel to the tropics.
Journal of Travel Medicine 2022, taac141.

Royer G, Ortiz de la Rosa JM, Vuillemin X, Lacombe B, Chau F, Clermont O, Mercier-Darty M, Decousser JW, Ricard JD, Nordmann P, Denamur E, Poirel L
Reduced Chlorhexidine Susceptibility Is Associated with Tetracycline Resistance tet Genes in Clinical Isolates of Escherichia coli.
Antimicrobial Agents and Chemotherapy 2022, 66, e0197221.

Marin J, Clermont O, Royer G, Mercier-Darty M, Decousser JW, Tenaillon O, Denamur E, Blanquart F
The Population Genomics of Increased Virulence and Antibiotic Resistance in Human Commensal Escherichia coli over 30 Years in France.
Applied and Environmental Microbiology 2022, 88, e0066422.

Denamur E, Condamine B, Esposito-Farèse M, Royer G, Clermont O, Laouenan C, Lefort A, de Lastours V, Galardini M, C, Sg
Genome wide association study of Escherichia coli bloodstream infection isolates identifies genetic determinants for the portal of entry but not fatal outcome.
PLoS genetics 2022, 18, e1010112.


Rousset F, Cabezas-Caballero J, Piastra-Facon F, Fernández-Rodríguez J, Clermont O, Denamur E, Rocha EPC, Bikard D
The impact of genetic diversity on gene essentiality within the Escherichia coli species.
Nature Microbiology 2021, 6, 301-312.

Rousset F, Cabezas-Caballero J, Piastra-Facon F, Fernández-Rodríguez J, Clermont O, Denamur E, Rocha EPC, Bikard D
Author Correction: The impact of genetic diversity on gene essentiality within the Escherichia coli species.
Nature Microbiology 2021, 6, 699.

Rousset F, Cabezas-Caballero J, Piastra-Facon F, Fernández-Rodríguez J, Clermont O, Denamur E, Rocha EPC, Bikard D
Publisher Correction: The impact of genetic diversity on gene essentiality within the Escherichia coli species.
Nature Microbiology 2021, 6, 700.

Denamur E, Clermont O, Bonacorsi S, Gordon D
The population genetics of pathogenic Escherichia coli.
Nature Reviews. Microbiology 2021, 19, 37-54.

Royer G, Poirel L, La Combe B, Clermont O, Chau F, Mercier-Darty M, Denamur E, Nordmann P, Ricard JD, Decousser JW
Lack of association between colistin resistance and chlorhexidine reduced susceptibility in clinical isolates of Escherichia coli.
The Journal of Antimicrobial Chemotherapy 2021, 76, 2736-2737.

Armand-Lefèvre L, Rondinaud E, Desvillechabrol D, Mullaert J, Clermont O, Petitjean M, Ruppe E, Cokelaer T, Bouchier C, Tenaillon O, Ma L, Nooroya Y, Matheron S, The Voyag-R Study Group n, Andremont A, Denamur E, Kennedy SP
Dynamics of extended-spectrum beta-lactamase-producing Enterobacterales colonization in long-term carriers following travel abroad.
Microbial Genomics 2021, 7, 000576.

Clermont O, Condamine B, Dion S, Gordon DM, Denamur E
The E phylogroup of Escherichia coli is highly diverse and mimics the whole E. coli species population structure.
Environmental Microbiology 2021, 23, 7139-7151.

Massot M, Châtre P, Condamine B, Métayer V, Clermont O, Madec JY, Denamur E, Haenni M
Interplay between Bacterial Clones and Plasmids in the Spread of Antibiotic Resistance Genes in the Gut: Lessons from a Temporal Study in Veal Calves.
Applied and Environmental Microbiology 2021, 87, e0135821.

Bridier-Nahmias A, Launay A, Bleibtreu A, Magnan M, Walewski V, Chatel J, Dion S, Robbe-Saule V, Clermont O, Norel F, Denamur E, Tenaillon O
Escherichia coli Genomic Diversity within Extraintestinal Acute Infections Argues for Adaptive Evolution at Play.
mSphere 2021, 6, e01176-20.

Royer G, Darty MM, Clermont O, Condamine B, Laouenan C, Decousser JW, Vallenet D, Lefort A, de Lastours V, Denamur E, CaSg
Phylogroup stability contrasts with high within sequence type complex dynamics of Escherichia coli bloodstream infection isolates over a 12-year period.
Genome Medicine 2021, 13, 77.

Milenkov M, Rasoanandrasana S, Rahajamanana LV, Rakotomalala RS, Razafindrakoto CA, Rafalimanana C, Ravelomandranto E, Ravaoarisaina Z, Westeel E, Petitjean M, Mullaert J, Clermont O, Raskine L, Samison LH, Endtz H, Andremont A, Denamur E, Komurian-Pradel F, Armand-Lefevre L
Prevalence, Risk Factors, and Genetic Characterization of Extended-Spectrum Beta-Lactamase Escherichia coli Isolated From Healthy Pregnant Women in Madagascar.
Frontiers in Microbiology 2021, 12, 786146.


Caméléna F, Morel F, Merimèche M, Decousser JW, Jacquier H, Clermont O, Darty M, Mainardis M, Cambau E, Tenaillon O, Denamur E, Berçot B, IRG
Genomic characterization of 16S rRNA methyltransferase-producing Escherichia coli isolates from the Parisian area, France.
The Journal of Antimicrobial Chemotherapy 2020, 75, 1726-1735.

de Lastours V, Laouénan C, Royer G, Carbonnelle E, Lepeule R, Esposito-Farèse M, Clermont O, Duval X, Fantin B, Mentré F, Decousser JW, Denamur E, Lefort A
Mortality in Escherichia coli bloodstream infections: antibiotic resistance still does not make it.
The Journal of Antimicrobial Chemotherapy 2020, 75, 2334-2343.

Maataoui N, Langendorf C, Berthe F, Bayjanov JR, van Schaik W, Isanaka S, Grais RF, Clermont O, Andremont A, Armand-Lefèvre L, Woerther PL
Increased risk of acquisition and transmission of ESBL-producing Enterobacteriaceae in malnourished children exposed to amoxicillin.
The Journal of Antimicrobial Chemotherapy 2020, 75, 709-717.

Duprilot M, Baron A, Blanquart F, Dion S, Pouget C, Lettéron P, Flament-Simon SC, Clermont O, Denamur E, Nicolas-Chanoine MH
Success of Escherichia coli O25b:H4 Sequence Type 131 Clade C Associated with a Decrease in Virulence.
Infection and Immunity 2020, 88, e00576-20.

Galardini M, Clermont O, Baron A, Busby B, Dion S, Schubert S, Beltrao P, Denamur E
Major role of iron uptake systems in the intrinsic extra-intestinal virulence of the genus Escherichia revealed by a genome-wide association study.
PLoS genetics 2020, 16, e1009065.


Amarsy R, Guéret D, Benmansour H, Flicoteaux R, Berçot B, Meunier F, Mougari F, Jacquier H, Pean de Ponfilly G, Clermont O, Denamur E, Teixeira A, Cambau E
Determination of Escherichia coli phylogroups in elderly patients with urinary tract infection or asymptomatic bacteriuria.
Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases 2019, 25, 839-844.

Bourrel AS, Poirel L, Royer G, Darty M, Vuillemin X, Kieffer N, Clermont O, Denamur E, Nordmann P, Decousser JW, IRG
Colistin resistance in Parisian inpatient faecal Escherichia coli as the result of two distinct evolutionary pathways.
The Journal of Antimicrobial Chemotherapy 2019, 74, 1521-1530.

Clermont O, Dixit OVA, Vangchhia B, Condamine B, Dion S, Bridier-Nahmias A, Denamur E, Gordon D
Characterization and rapid identification of phylogroup G in Escherichia coli, a lineage with high virulence and antibiotic resistance potential.
Environmental Microbiology 2019, 21, 3107-3117.

Billard-Pomares T, Clermont O, Castellanos M, Magdoud F, Royer G, Condamine B, Fouteau S, Barbe V, Roche D, Cruveiller S, Médigue C, Pognard D, Glodt J, Dion S, Rigal O, Picard B, Denamur E, Branger C
The Arginine Deiminase Operon Is Responsible for a Fitness Trade-Off in Extended-Spectrum-β-Lactamase-Producing Strains of Escherichia coli.
Antimicrobial Agents and Chemotherapy 2019, 63,

Burdet C, Grall N, Linard M, Bridier-Nahmias A, Benhayoun M, Bourabha K, Magnan M, Clermont O, d'Humières C, Tenaillon O, Denamur E, Massias L, Tubiana S, Alavoine L, Andremont A, Mentré F, Duval X, CG
Ceftriaxone and Cefotaxime Have Similar Effects on the Intestinal Microbiota in Human Volunteers Treated by Standard-Dose Regimens.
Antimicrobial Agents and Chemotherapy 2019, 63, e02244-18.

Nowrouzian FL, Clermont O, Edin M, Östblom A, Denamur E, Wold AE, Adlerberth I
Escherichia coli B2 Phylogenetic Subgroups in the Infant Gut Microbiota: Predominance of Uropathogenic Lineages in Swedish Infants and Enteropathogenic Lineages in Pakistani Infants.
Applied and Environmental Microbiology 2019, 85,

La Combe B, Clermont O, Messika J, Eveillard M, Kouatchet A, Lasocki S, Corvec S, Lakhal K, Billard-Pomares T, Fernandes R, Armand-Lefevre L, Bourdon S, Reignier J, Fihman V, de Prost N, Bador J, Goret J, Wallet F, Denamur E, Ricard JD, Cg, CG
Pneumonia-Specific Escherichia coli with Distinct Phylogenetic and Virulence Profiles, France, 2012-2014.
Emerging Infectious Diseases 2019, 25, 710-718.


La Combe B, Bleibtreu A, Messika J, Fernandes R, Clermont O, Branger C, Billard-Pomares T, Barnaud G, Magdoud F, Eveillard M, Kouatchet A, Lasocki S, Asfar P, Corvec S, Lakhal K, Armand-Lefevre L, Wolff M, Timsit JF, Bourdon S, Reignier J, Martin S, Fihman V, de Prost N, Bador J, Charles PE, Goret J, Boyer A, Wallet F, Jaillette E, Nseir S, Landraud L, Ruimy R, Danin PE, Dellamonica J, Cremniter J, Frat JP, Jauréguy F, Clec'h C, Decré D, Maury E, Dreyfuss D, Denamur E, Ricard JD
Decreased susceptibility to chlorhexidine affects a quarter of Escherichia coli isolates responsible for pneumonia in ICU patients.
Intensive Care Medicine 2018, 44, 531-533.

Beghain J, Bridier-Nahmias A, Le Nagard H, Denamur E, Clermont O
ClermonTyping: an easy-to-use and accurate in silico method for Escherichia genus strain phylotyping.
Microbial Genomics 2018, 4, e000192.

Branger C, Ledda A, Billard-Pomares T, Doublet B, Fouteau S, Barbe V, Roche D, Cruveiller S, Médigue C, Castellanos M, Decré D, Drieux-Rouze L, Clermont O, Glodt J, Tenaillon O, Cloeckaert A, Arlet G, Denamur E
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.
Microbial Genomics 2018

Desroches M, Clermont O, Lafeuillade B, Rodriguez C, Darty M, Royer G, Bouvet O, Ounnoughene N, Noizat-Pirenne F, Denamur E, Decousser JW
Genotypic and phenotypic characteristics of Escherichia coli involved in transfusion-transmitted bacterial infections: implications for preventive strategies.
Transfusion 2018, 58, 1940-1950.

Ghalayini M, Launay A, Bridier-Nahmias A, Clermont O, Denamur E, Lescat M, Tenaillon O
Evolution of a Dominant Natural Isolate of Escherichia coli in the Human Gut over the Course of a Year Suggests a Neutral Evolution with Reduced Effective Population Size.
Applied and Environmental Microbiology 2018, 84, e02377-17.

Desroches M, Royer G, Roche D, Mercier-Darty M, Vallenet D, Médigue C, Bastard K, Rodriguez C, Clermont O, Denamur E, Decousser JW
The Odyssey of the Ancestral Escherich Strain through Culture Collections: an Example of Allopatric Diversification.
mSphere 2018

Lorme F, Maataoui N, Rondinaud E, Esposito-Farèse M, Clermont O, Ruppe E, Arlet G, Genel N, VRsg, Matheron S, Andremont A, Armand-Lefevre L
Acquisition of plasmid-mediated cephalosporinase producing Enterobacteriaceae after a travel to the tropics.
PloS One 2018, 13, e0206909.


Tashk P, Lecronier M, Clermont O, Renvoisé A, Aubry A, Barrou B, Hertig A, Lescat M, Tenaillon O, Denamur E, Tourret J
[Molecular epidemiology and kinetics of early Escherichia coli urinary tract infections in kidney transplant recipients].
Nephrologie & Therapeutique 2017, 13, 236-244.

Clermont O, Couffignal C, Blanco J, Mentre F, Picard B, Denamur E
Two levels of specialization in bacteraemic Escherichia coli strains revealed by their comparison with commensal strains.
Epidemiol Infect 2017, 145, 872-882.

Messika J, Clermont O, Landraud L, Schmidt M, Aubry A, Sougakoff W, Fernandes R, Combes A, Denamur E, Ricard JD
Extra-corporeal membrane oxygenation-associated infections: implication of extra-intestinal pathogenic Escherichia coli clones.
Journal of Medical Microbiology 2017, 66, 1189-1195.

Bouvet O, Bourdelier E, Glodt J, Clermont O, Denamur E
Diversity of the auxotrophic requirements in natural isolates of Escherichia coli.
Microbiology (Reading, England) 2017, 163, 891-899.

Bouvet O, Bourdelier E, Glodt J, Clermont O, Denamur E
Erratum: Diversity of the auxotrophic requirements in natural isolates of Escherichia coli.
Microbiology (Reading, England) 2017, 163, 1260-1261.

Massot M, Couffignal C, Clermont O, D'Humières C, Chatel J, Plault N, Andremont A, Caron A, Mentré F, Denamur E
Day-to-Day Dynamics of Commensal Escherichia coli in Zimbabwean Cows Evidence Temporal Fluctuations within a Host-Specific Population Structure.
Applied and Environmental Microbiology 2017, 83, e00659-17.

Gordon DM, Geyik S, Clermont O, O'Brien CL, Huang S, Abayasekara C, Rajesh A, Kennedy K, Collignon P, Pavli P, Rodriguez C, Johnston BD, Johnson JR, Decousser JW, Denamur E
Fine-Scale Structure Analysis Shows Epidemic Patterns of Clonal Complex 95, a Cosmopolitan Escherichia coli Lineage Responsible for Extraintestinal Infection.
mSphere 2017

Petit F, Clermont O, Delannoy S, Servais P, Gourmelon M, Fach P, Oberlé K, Fournier M, Denamur E, Berthe T
Change in the Structure of Escherichia coli Population and the Pattern of Virulence Genes along a Rural Aquatic Continuum.
Frontiers in Microbiology 2017, 8, 609.

Galardini M, Koumoutsi A, Herrera-Dominguez L, Cordero Varela JA, Telzerow A, Wagih O, Wartel M, Clermont O, Denamur E, Typas A, Beltrao P
Phenotype inference in an Escherichia coli strain panel.
eLife 2017


Njamkepo E, Fawal N, Tran-Dien A, Hawkey J, Strockbine N, Jenkins C, Talukder KA, Bercion R, Kuleshov K, Kolínská R, Russell JE, Kaftyreva L, Accou-Demartin M, Karas A, Vandenberg O, Mather AE, Mason CJ, Page AJ, Ramamurthy T, Bizet C, Gamian A, Carle I, Sow AG, Bouchier C, Wester AL, Lejay-Collin M, Fonkoua MC, Hello SL, Blaser MJ, Jernberg C, Ruckly C, Mérens A, Page AL, Aslett M, Roggentin P, Fruth A, Denamur E, Venkatesan M, Bercovier H, Bodhidatta L, Chiou CS, Clermont D, Colonna B, Egorova S, Pazhani GP, Ezernitchi AV, Guigon G, Harris SR, Izumiya H, Korzeniowska-Kowal A, Lutyńska A, Gouali M, Grimont F, Langendorf C, Marejková M, Peterson LAM, Perez-Perez G, Ngandjio A, Podkolzin A, Souche E, Makarova M, Shipulin GA, Ye C, Žemličková H, Herpay M, Grimont PAD, Parkhill J, Sansonetti P, Holt KE, Brisse S, Thomson NR, Weill FX
Global phylogeography and evolutionary history of Shigella dysenteriae type 1.
Nature Microbiology 2016, 1, 16027.

Dufour N, Clermont O, La Combe B, Messika J, Dion S, Khanna V, Denamur E, Ricard J, Debarbieux L, ColoColi group
Bacteriophage LM33_P1, a fast-acting weapon against the pandemic ST131-O25b:H4 Escherichia coli clonal complex..
Journal of Antimicrobial Chemotherapy 2016, 71, 3072.

Skurnik D, Clermont O, Guillard T, Launay A, Danilchanka O, Pons S, Diancourt L, Lebreton F, Kadlec K, Roux D, Jiang D, Dion S, Ashard H, Denamur M, Cywes-Bentley C, Schwarz S, Tenaillon O, Andremont A, Picard B, Mekalanos J, Brisse S, Denamur E
Emergence of Antimicrobial-Resistant Escherichia coli of Animal Origin Spreading in Humans.
Molecular Biology and Evolution 2016, 33, 898.

Massot M, Daubie AS, Clermont O, Jaureguy F, Couffignal C, Dahbi G, Mora A, Blanco J, Branger C, Mentre F, Eddi A, Picard B, Denamur E, The Coliville G
Phylogenetic, virulence and antibiotic resistance characteristics of commensal strain populations of Escherichia coli from community subjects in the Paris area in 2010 and evolution over 30 years.
Microbiology 2016, 162, 642-50.

Mercat M, Clermont O, Massot M, Ruppe E, de Garine-Wichatitsky M, Miguel E, Valls Fox H, Cornelis D, Andremont A, Denamur E, Caron A
Escherichia coli Population Structure and Antibiotic Resistance at a Buffalo/Cattle Interface in Southern Africa.
Applied and Environmental Microbiology 2016, 82, 1459-1467.


Smati M, Clermont O, Bleibtreu A, Fourreau F, David A, Daubié AS, Hignard C, Loison O, Picard B, Denamur E
Quantitative analysis of commensal Escherichia coli populations reveals host-specific enterotypes at the intra-species level.
MicrobiologyOpen 2015, 4, 604-615.

Clermont O, Gordon D, Denamur E
A guide to the various phylogenetic classification schemes for Escherichia coli and the correspondence among schemes.
Microbiology (Reading, England) 2015

Grall N, Barraud O, Wieder I, Hua A, Perrier M, Babosan A, Gaschet M, Clermont O, Denamur E, Catzeflis F, Decré D, Ploy MC, Andremont A
Lack of dissemination of acquired resistance to β-lactam in small wild mammals around an isolated village in the Amazonian forest.
Environmental Microbiology Reports 2015


Clermont O, Christenson JK, Daubié AS, Gordon DM, Denamur E
Development of an allele-specific PCR for Escherichia coli B2 sub-typing, a rapid and easy to perform substitute of multilocus sequence typing.
Journal of Microbiological Methods 2014, 101, 24-27.

Roubaud Baudron C, Panhard X, Clermont O, Mentré F, Fantin B, Denamur E, Lefort A, CG
Escherichia coli bacteraemia in adults: age-related differences in clinical and bacteriological characteristics, and outcome.
Epidemiology and Infection 2014, 142, 2672-2683.

Burdet C, Clermont O, Bonacorsi S, Laouénan C, Bingen E, Aujard Y, Mentré F, Lefort A, Denamur E, CG
Escherichia coli bacteremia in children: age and portal of entry are the main predictors of severity.
The Pediatric Infectious Disease Journal 2014, 33, 872–879.

Surgers L, Bleibtreu A, Burdet C, Clermont O, Laouénan C, Lefort A, Mentré F, Carbonne B, Bingen E, Meynard JL, Denamur E, CG
Escherichia coli bacteraemia in pregnant women is life-threatening for foetuses.
Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases 2014, 20, O1035–1041.

Périchon B, Goussard S, Walewski V, Krizova L, Cerqueira G, Murphy C, Feldgarden M, Wortman J, Clermont D, Nemec A, Courvalin P
Identification of 50 class D β-lactamases and 65 Acinetobacter-derived cephalosporinases in Acinetobacter spp.
Antimicrobial Agents and Chemotherapy 2014, 58, 936-949.

Billard-Pomares T, Fouteau S, Jacquet ME, Roche D, Barbe V, Castellanos M, Bouet JY, Cruveiller S, Médigue C, Blanco J, Clermont O, Denamur E, Branger C
Characterization of a P1-like bacteriophage encoding an SHV-2 extended-spectrum β-lactamase from an Escherichia coli strain.
Antimicrobial Agents and Chemotherapy 2014

Bleibtreu A, Clermont O, Darlu P, Glodt J, Branger C, Picard B, Denamur E
The rpoS gene is predominantly inactivated during laboratory storage and undergoes source-sink evolution in Escherichia coli species.
Journal of Bacteriology 2014, 196, 4276-4284.

Johnson JR, Clermont O, Johnston B, Clabots C, Tchesnokova V, Sokurenko E, Junka AF, Maczynska B, Denamur E
Rapid and specific detection, molecular epidemiology, and experimental virulence of the O16 subgroup within Escherichia coli sequence type 131.
Journal of Clinical Microbiology 2014, 52, 1358-1365.

Payros D, Secher T, Boury M, Brehin C, Ménard S, Salvador-Cartier C, Cuevas-Ramos G, Watrin C, Marcq I, Nougayrède JP, Dubois D, Bedu A, Garnier F, Clermont O, Denamur E, Plaisancié P, Theodorou V, Fioramonti J, Olier M, Oswald E
Maternally acquired genotoxic Escherichia coli alters offspring's intestinal homeostasis.
Gut Microbes 2014, 5, 313-325.


Clermont O, Glodt J, Burdet C, Pognard D, Lefort A, Branger C, Denamur E, CGM
Complexity of Escherichia coli bacteremia pathophysiology evidenced by comparison of isolates from blood and portal of entry within single patients.
International journal of medical microbiology: IJMM 2013, 303, 529–532.

Clermont O, Christenson JK, Denamur E, Gordon DM
The Clermont Escherichia coli phylo-typing method revisited: improvement of specificity and detection of new phylo-groups.
Environmental Microbiology Reports 2013, 5, 58-65.

Landraud L, Jauréguy F, Frapy E, Guigon G, Gouriou S, Carbonnelle E, Clermont O, Denamur E, Picard B, Lemichez E, Brisse S, Nassif X
Severity of Escherichia coli bacteraemia is independent of the intrinsic virulence of the strains assessed in a mouse model.
Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases 2013, 19, 85-90.

Lescat M, Clermont O, Woerther PL, Glodt J, Dion S, Skurnik D, Djossou F, Dupont C, Perroz G, Picard B, Catzeflis F, Andremont A, Denamur E
Commensal Escherichia coli strains in Guiana reveal a high genetic diversity with host-dependant population structure.
Environmental Microbiology Reports 2013, 5, 49-57.

Ruppé E, Lixandru B, Cojocaru R, Büke C, Paramythiotou E, Angebault C, Visseaux C, Djuikoue I, Erdem E, Burduniuc O, El Mniai A, Marcel C, Perrier M, Kesteman T, Clermont O, Denamur E, Armand-Lefèvre L, Andremont A
Relative fecal abundance of extended-spectrum-β-lactamase-producing Escherichia coli strains and their occurrence in urinary tract infections in women.
Antimicrobial Agents and Chemotherapy 2013, 57, 4512-4517.

Berthe T, Ratajczak M, Clermont O, Denamur E, Petit F
Evidence for coexistence of distinct Escherichia coli populations in various aquatic environments and their survival in estuary water.
Applied and Environmental Microbiology 2013, 79, 4684-4693.

Smati M, Clermont O, Le Gal F, Schichmanoff O, Jauréguy F, Eddi A, Denamur E, Picard B, CG
Real-time PCR for quantitative analysis of human commensal Escherichia coli populations reveals a high frequency of subdominant phylogroups.
Applied and Environmental Microbiology 2013, 79, 5005-5012.

Bleibtreu A, Gros PA, Laouénan C, Clermont O, Le Nagard H, Picard B, Tenaillon O, Denamur E
Fitness, stress resistance, and extraintestinal virulence in Escherichia coli.
Infection and Immunity 2013, 81, 2733–2742.


Messika J, Magdoud F, Clermont O, Margetis D, Gaudry S, Roux D, Branger C, Dreyfuss D, Denamur E, Ricard JD
Pathophysiology of Escherichia coli ventilator-associated pneumonia: implication of highly virulent extraintestinal pathogenic strains.
Intensive Care Medicine 2012, 38, 2007-2016.

Vimont S, Boyd A, Bleibtreu A, Bens M, Goujon JM, Garry L, Clermont O, Denamur E, Arlet G, Vandewalle A
The CTX-M-15-producing Escherichia coli clone O25b: H4-ST131 has high intestine colonization and urinary tract infection abilities.
PloS One 2012, 7, e46547.


Clermont O, Olier M, Hoede C, Diancourt L, Brisse S, Keroudean M, Glodt J, Picard B, Oswald E, Denamur E
Animal and human pathogenic Escherichia coli strains share common genetic backgrounds.
Infection, Genetics and Evolution: Journal of Molecular Epidemiology and Evolutionary Genetics in Infectious Diseases 2011, 11, 654-662.

Gutierrez A, Elez M, Clermont O, Denamur E, Matic I
Escherichia coli YafP protein modulates DNA damaging property of the nitroaromatic compounds.
Nucleic Acids Research 2011, 39, 4192-4201.

Sabarly V, Bouvet O, Glodt J, Clermont O, Skurnik D, Diancourt L, de Vienne D, Denamur E, Dillmann C
The decoupling between genetic structure and metabolic phenotypes in Escherichia coli leads to continuous phenotypic diversity.
Journal of Evolutionary Biology 2011, 24, 1559-1571.

Clermont O, Gordon DM, Brisse S, Walk ST, Denamur E
Characterization of the cryptic Escherichia lineages: rapid identification and prevalence.
Environmental Microbiology 2011, 13, 2468-2477.

Courpon-Claudinon A, Lefort A, Panhard X, Clermont O, Dornic Q, Fantin B, Mentré F, Wolff M, Denamur E, Branger C, CG
Bacteraemia caused by third-generation cephalosporin-resistant Escherichia coli in France: prevalence, molecular epidemiology and clinical features.
Clinical Microbiology and Infection: The Official Publication of the European Society of Clinical Microbiology and Infectious Diseases 2011, 17, 557-565.

Ingle DJ, Clermont O, Skurnik D, Denamur E, Walk ST, Gordon DM
Biofilm formation by and thermal niche and virulence characteristics of Escherichia spp.
Applied and Environmental Microbiology 2011, 77, 2695-2700.

Lefort A, Panhard X, Clermont O, Woerther PL, Branger C, Mentré F, Fantin B, Wolff M, Denamur E, CG
Host factors and portal of entry outweigh bacterial determinants to predict the severity of Escherichia coli bacteremia.
Journal of Clinical Microbiology 2011, 49, 777-783.


Dhanji H, Doumith M, Clermont O, Denamur E, Hope R, Livermore DM, Woodford N
Real-time PCR for detection of the O25b-ST131 clone of Escherichia coli and its CTX-M-15-like extended-spectrum beta-lactamases.
International Journal of Antimicrobial Agents 2010, 36, 355-358.

Schubert S, Nörenberg D, Clermont O, Magistro G, Wieser A, Romann E, Hoffmann C, Weinert K, Denamur E
Prevalence and phylogenetic history of the TcpC virulence determinant in Escherichia coli.
International journal of medical microbiology: IJMM 2010, 300, 429-434.

Woerther PL, Angebault C, Lescat M, Ruppé E, Skurnik D, Mniai AE, Clermont O, Jacquier H, Costa AD, Renard M, Bettinger RM, Epelboin L, Dupont C, Guillemot D, Rousset F, Arlet G, Denamur E, Djossou F, Andremont A
Emergence and dissemination of extended-spectrum beta-lactamase-producing Escherichia coli in the community: lessons from the study of a remote and controlled population.
The Journal of Infectious Diseases 2010, 202, 515-523.

Mihaila L, Wyplosz B, Clermont O, Garry L, Hipeaux MC, Vittecoq D, Dussaix E, Denamur E, Branger C
Probable intrafamily transmission of a highly virulent CTX-M-3-producing Escherichia coli belonging to the emerging phylogenetic subgroup D2 O102-ST405 clone.
The Journal of Antimicrobial Chemotherapy 2010, 65, 1537-1539.

Michel A, Clermont O, Denamur E, Tenaillon O
Bacteriophage PhiX174's ecological niche and the flexibility of its Escherichia coli lipopolysaccharide receptor.
Applied and Environmental Microbiology 2010, 76, 7310-7313.

Moissenet D, Salauze B, Clermont O, Bingen E, Arlet G, Denamur E, Mérens A, Mitanchez D, Vu-Thien H
Meningitis caused by Escherichia coli producing TEM-52 extended-spectrum beta-lactamase within an extensive outbreak in a neonatal ward: epidemiological investigation and characterization of the strain.
Journal of Clinical Microbiology 2010, 48, 2459-2463.

Ratajczak M, Laroche E, Berthe T, Clermont O, Pawlak B, Denamur E, Petit F
Influence of hydrological conditions on the Escherichia coli population structure in the water of a creek on a rural watershed.
BMC microbiology 2010, 10, 222.


Clermont O, Dhanji H, Upton M, Gibreel T, Fox A, Boyd D, Mulvey MR, Nordmann P, Ruppé E, Sarthou JL, Frank T, Vimont S, Arlet G, Branger C, Woodford N, Denamur E
Rapid detection of the O25b-ST131 clone of Escherichia coli encompassing the CTX-M-15-producing strains.
The Journal of Antimicrobial Chemotherapy 2009, 64, 274-277.

Deschamps C, Clermont O, Hipeaux MC, Arlet G, Denamur E, Branger C
Multiple acquisitions of CTX-M plasmids in the rare D2 genotype of Escherichia coli provide evidence for convergent evolution.
Microbiology (Reading, England) 2009, 155, 1656-1668.

Lescat M, Hoede C, Clermont O, Garry L, Darlu P, Tuffery P, Denamur E, Picard B
aes, the gene encoding the esterase B in Escherichia coli, is a powerful phylogenetic marker of the species.
BMC microbiology 2009, 9, 273.

Schubert S, Darlu P, Clermont O, Wieser A, Magistro G, Hoffmann C, Weinert K, Tenaillon O, Matic I, Denamur E
Role of intraspecies recombination in the spread of pathogenicity islands within the Escherichia coli species.
PLoS pathogens 2009, 5, e1000257.


Clermont O, Lavollay M, Vimont S, Deschamps C, Forestier C, Branger C, Denamur E, Arlet G
The CTX-M-15-producing Escherichia coli diffusing clone belongs to a highly virulent B2 phylogenetic subgroup.
The Journal of Antimicrobial Chemotherapy 2008, 61, 1024-1028.

Clermont O, Lescat M, O'Brien CL, Gordon DM, Tenaillon O, Denamur E
Evidence for a human-specific Escherichia coli clone.
Environmental Microbiology 2008, 10, 1000-1006.

Gordon DM, Clermont O, Tolley H, Denamur E
Assigning Escherichia coli strains to phylogenetic groups: multi-locus sequence typing versus the PCR triplex method.
Environmental Microbiology 2008, 10, 2484-2496.

Jaureguy F, Landraud L, Passet V, Diancourt L, Frapy E, Guigon G, Carbonnelle E, Lortholary O, Clermont O, Denamur E, Picard B, Nassif X, Brisse S
Phylogenetic and genomic diversity of human bacteremic Escherichia coli strains.
BMC genomics 2008, 9, 560.


Clermont O, Johnson JR, Menard M, Denamur E
Determination of Escherichia coli O types by allele-specific polymerase chain reaction: application to the O types involved in human septicemia.
Diagnostic Microbiology and Infectious Disease 2007, 57, 129-136.

Diard M, Baeriswyl S, Clermont O, Gouriou S, Picard B, Taddei F, Denamur E, Matic I
Caenorhabditis elegans as a simple model to study phenotypic and genetic virulence determinants of extraintestinal pathogenic Escherichia coli.
Microbes and Infection / Institut Pasteur 2007, 9, 214-223.

Le Gall T, Clermont O, Gouriou S, Picard B, Nassif X, Denamur E, Tenaillon O
Extraintestinal virulence is a coincidental by-product of commensalism in B2 phylogenetic group Escherichia coli strains.
Molecular Biology and Evolution 2007, 24, 2373-2384.


Johnson JR, Clermont O, Menard M, Kuskowski MA, Picard B, Denamur E
Experimental mouse lethality of Escherichia coli isolates, in relation to accessory traits, phylogenetic group, and ecological source.
The Journal of Infectious Diseases 2006, 194, 1141-1150.


Leflon-Guibout V, Bonacorsi S, Clermont O, Ternat G, Heym B, Nicolas-Chanoine MH
Pyelonephritis caused by multiple clones of Escherichia coli, susceptible and resistant to co-amoxiclav, after a 45 day course of co-amoxiclav.
The Journal of Antimicrobial Chemotherapy 2002, 49, 373-377.


Duriez P, Clermont O, Bonacorsi S, Bingen E, Chaventré A, Elion J, Picard B, Denamur E
Commensal Escherichia coli isolates are phylogenetically distributed among geographically distinct human populations.
Microbiology (Reading, England) 2001, 147, 1671-1676.