Anthony Levasseur
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View article: Emergence of the zoonotic bacterium Necropsobacter rosorum in nutria Myocastor coypus with implications for wildlife and human health
Emergence of the zoonotic bacterium Necropsobacter rosorum in nutria Myocastor coypus with implications for wildlife and human health Open
View article: WITHDRAWN: Cytotoxic Bacillus anthracis, Bacillus pacificus and Scardovia wiggsiae strains associated with Noma in Senegal
WITHDRAWN: Cytotoxic Bacillus anthracis, Bacillus pacificus and Scardovia wiggsiae strains associated with Noma in Senegal Open
Withdrawal Statement The authors have withdrawn their manuscript because of a disagreement regarding the list of authors. Therefore, the authors do not wish this work to be cited as reference for the project. If you have any questions, ple…
View article: Recrudescence des cas de coqueluche en France, 2023-2024.
Recrudescence des cas de coqueluche en France, 2023-2024. Open
View article: Thomasclavelia ramosa and alcohol-related hepatocellular carcinoma: a microbial culturomics study
Thomasclavelia ramosa and alcohol-related hepatocellular carcinoma: a microbial culturomics study Open
T. ramosa, identified by culturomics and 16 rRNA sequencing, may be associated with ALD and ALD-HCC. These results highlight the potential role of T. ramosa in liver cancer, in line with its genotoxic properties and its tumor growth-promot…
View article: Gut microbiota influences Plasmodium falciparum malaria susceptibility
Gut microbiota influences Plasmodium falciparum malaria susceptibility Open
Further studies are needed to confirm these findings, which point the way to strategies aimed at reducing the risk of malaria by modulating gut microbiota components in at-risk populations.
View article: Thomasclavelia ramosa and Alcohol-Related Hepatocellular Carcinoma: A Microbial Culturomics Study
Thomasclavelia ramosa and Alcohol-Related Hepatocellular Carcinoma: A Microbial Culturomics Study Open
Background: Gut microbiota alteration is implicated in the pathogenesis of alcoholic liver disease (ALD) and associated hepatocellular carcinoma (HCC). No study has characterized the dysbiosis associated with ALD by microbial culturomics, …
View article: Significant rise of Chlamydia pneumoniae infection in 2024 in Marseille, France
Significant rise of Chlamydia pneumoniae infection in 2024 in Marseille, France Open
The present findings warrant a close monitoring of diagnoses of C. pneumoniae infections at the local and country scales and to implement genomic surveillance and characterize drug resistance for diagnosed cases.
View article: Hairpin loop mutations determine the evolution of SARS-CoV-2
Hairpin loop mutations determine the evolution of SARS-CoV-2 Open
One of the bases of genetic organization is the occurrence of stem-loops or hairpins which may constitute a foundation of genetic evolution both in viruses and other organisms. Stem-loops are theoretically made up of a stable part, the dou…
View article: The disappearance of ORF8 in specialized coronaviruses: the Cheshire cat paradigm
The disappearance of ORF8 in specialized coronaviruses: the Cheshire cat paradigm Open
We studied the fate of a gene called ORF8 in different coronaviruses species during their passage to humans. We renamed this ORF ‘Mistigri’ because ORF8 in coronaviruses does not necessarily correspond to the same coding sequences. We show…
View article: APOBEC cellular enzymes as ‘Court Jesters’ in SARS-CoV-2 evolution
APOBEC cellular enzymes as ‘Court Jesters’ in SARS-CoV-2 evolution Open
Human cellular APOBEC enzymes were largely reported as involved in innate antiviral defenses. We previously highlighted that in SARS-CoV-2 genomes obtained in our center, nearly half of ‘hyperfertile’ or ‘fertile’ mutations while 23% of ne…
View article: Persistent Aerointolerant Gut Microbes and Butyrate Depletion in Severe Acute Malnutrition
Persistent Aerointolerant Gut Microbes and Butyrate Depletion in Severe Acute Malnutrition Open
Severe acute malnutrition (SAM) constitutes the leading risk for childhood mortality worldwide. Butyrate, a critical metabolite for mucosal immunity produced by anaerobic gut microbes, has been found to be dramatically depleted in children…
View article: Significant rise of<i>Chlamydia pneumoniae</i>diagnoses at Marseille University Hospitals, 2024, France
Significant rise of<i>Chlamydia pneumoniae</i>diagnoses at Marseille University Hospitals, 2024, France Open
SUMMARY We report a 19-fold increase in 2024 of qPCR diagnoses of Chlamydia pneumoniae infections in Marseille, Southern France, with 37 cases versus 10 between 2018-2023. These mostly affected children, and young adults. We obtained four …
View article: Retraction Note: Culture of previously uncultured members of the human gut microbiota by culturomics
Retraction Note: Culture of previously uncultured members of the human gut microbiota by culturomics Open
View article: MORS Phalax Ad for Systems Analysis
MORS Phalax Ad for Systems Analysis Open
At Lawrence Livermore National Laboratory, applying cutting-edge science and technology to challenging security questions is an everyday thing. Systems Analysis is one way we solve problems—by bringing analytic rigor to missions like strat…
View article: <i>Thomasclavelia ramosa</i>is a Signature of Gut Dysbiosis associated with Alcohol-Related Hepatocellular Carcinoma: A First Microbial Culturomics Study
<i>Thomasclavelia ramosa</i>is a Signature of Gut Dysbiosis associated with Alcohol-Related Hepatocellular Carcinoma: A First Microbial Culturomics Study Open
Background Gut microbiota alteration is implicated in the pathogenesis of alcoholic liver disease (ALD) and HCC. No study has characterized the dysbiosis associated with ALD by microbial culturomics, an approach that certifies viability an…
View article: Retraction Note: Salt in stools is associated with obesity, gut halophilic microbiota and Akkermansia muciniphila depletion in humans
Retraction Note: Salt in stools is associated with obesity, gut halophilic microbiota and Akkermansia muciniphila depletion in humans Open
View article: “Outlaw” mutations in quasispecies of SARS-CoV-2 inhibit replication
“Outlaw” mutations in quasispecies of SARS-CoV-2 inhibit replication Open
The evolution of SARS-CoV-2, the agent of COVID-19, has been remarkable for its high mutation potential, leading to the appearance of variants. Some mutations have never appeared in the published genomes, which represent consensus, or b…
View article: Retraction Note: Dramatic HIV DNA degradation associated with spontaneous HIV suppression and disease-free outcome in a young seropositive woman following her infection
Retraction Note: Dramatic HIV DNA degradation associated with spontaneous HIV suppression and disease-free outcome in a young seropositive woman following her infection Open
View article: Role of SARS-CoV-2 mutations in the evolution of the COVID-19 pandemic
Role of SARS-CoV-2 mutations in the evolution of the COVID-19 pandemic Open
View article: Is it time to switch to a formulation other than the live attenuated poliovirus vaccine to prevent poliomyelitis?
Is it time to switch to a formulation other than the live attenuated poliovirus vaccine to prevent poliomyelitis? Open
The polioviruses (PVs) are mainly transmitted by direct contact with an infected person through the fecal-oral route and respiratory secretions (or more rarely via contaminated water or food) and have a primary tropism for the gut. After t…
View article: Retraction Note: Repertoire of the gut microbiota from stomach to colon using culturomics and next-generation sequencing
Retraction Note: Repertoire of the gut microbiota from stomach to colon using culturomics and next-generation sequencing Open
View article: From viral democratic genomes to viral wild bunch of quasispecies
From viral democratic genomes to viral wild bunch of quasispecies Open
The tremendous majority of RNA genomes from pathogenic viruses analyzed and deposited in databases are consensus or “democratic” genomes. They represent the genomes most frequently found in the clinical samples of patients but do not accou…
View article: Cover Image, Volume 95, Number 11, November 2023
Cover Image, Volume 95, Number 11, November 2023 Open
Front Cover Caption: The cover image is based on the Review From viral democratic genomes to viral wild bunch of quasispecies by Philippe Colson et al., https://doi.org/10.1002/jmv.29209.
View article: Retraction Note: Gut Microbiota Alteration is Characterized by a Proteobacteria and Fusobacteria Bloom in Kwashiorkor and a Bacteroidetes Paucity in Marasmus
Retraction Note: Gut Microbiota Alteration is Characterized by a Proteobacteria and Fusobacteria Bloom in Kwashiorkor and a Bacteroidetes Paucity in Marasmus Open
View article: Resuscitating Sleeping Beauties: reviving a six-hundred-year-old amoeba and endosymbiont
Resuscitating Sleeping Beauties: reviving a six-hundred-year-old amoeba and endosymbiont Open
Coprolites are sources of ancient human gut microbiota and parasites. Paleomicrobiological investigation of a 14 th -century coprolite revealed amoeba cysts that when cultured were identified as Acanthamoeba castellanii strain Namur. Genom…
View article: Identification and Characterization of an HtrA Sheddase Produced by Coxiella burnetii
Identification and Characterization of an HtrA Sheddase Produced by Coxiella burnetii Open
Having previously shown that soluble E-cadherin (sE-cad) is found in sera of Q fever patients and that infection of BeWo cells by C. burnetii leads to modulation of the E-cad/β-cat pathway, our purpose was to identify which sheddase(s) mig…
View article: Tracking Mycoviruses in Public RNAseq Datasets of Malassezia: Three Original Totiviruses Revealed
Tracking Mycoviruses in Public RNAseq Datasets of Malassezia: Three Original Totiviruses Revealed Open
Mycoviruses are viruses that selectively infect and multiply in fungal cells. Malassezia is the most abundant fungus on human skin and is associated with a variety of conditions, including atopic eczema, atopic dermatitis, dandruff, follic…
View article: Role of SARS-CoV-2 mutations in the evolution of the COVID-19 pandemic
Role of SARS-CoV-2 mutations in the evolution of the COVID-19 pandemic Open
RNA viruses, including SARS-CoV-2, evolve by mutation acquisition, or by hybridization between viral genomes. The SARS-CoV-2 pandemic provided an exceptional opportunity to analyze the mutations that appeared over a three-year period. In t…
View article: Early Treatment with Hydroxychloroquine and Azithromycin: A ‘Real-World’ Monocentric Retrospective Cohort Study of 30,423 COVID-19 Patients
Early Treatment with Hydroxychloroquine and Azithromycin: A ‘Real-World’ Monocentric Retrospective Cohort Study of 30,423 COVID-19 Patients Open
The authors have withdrawn this manuscript because analytic strategies for this project have changed. Therefore, the authors do not wish this work to be cited as reference for the project.
View article: Identification and characterization of an HtrA sheddase produced by<i>Coxiella burnetii</i>
Identification and characterization of an HtrA sheddase produced by<i>Coxiella burnetii</i> Open
Having previously shown that soluble E-cadherin (sE-cad) is found in sera of Q fever patients, and that infection of BeWo cells by C. burnetii leads to modulation of the E-cad/β-cat pathway, our purpose was to identify which sheddase(s) mi…