OOIR: Observatory of International Research

Papers

(The TQCC of Anaerobe is 6. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2021-02-01 to 2025-02-01.)

Article	Citations
Bacteremia due to Clostridium innocuum: Analysis of four cases and literature review	59
Comparative clinical outcomes evaluation of hospitalized patients infected with Clostridioides difficile ribotype 106 vs. other toxigenic strains	38
Probiotic-related Clostridium butyricum bacteremia: a case report and literature review	35
EUCAST invite comments on new methods for antimicrobial susceptibility testing of anaerobic bacteria	32
Presence of Clostridioides difficile in cattle feces, carcasses, and slaughterhouses: Molecular characterization and antibacterial susceptibility of the recovered isolates	29
Impact of COVID19 pandemic on the incidence of health-care associated Clostridioides difficile infection	26
First case of necrotizing fasciitis and bacteremia caused by Bifidobacterium breve	25
Editorial Board	25
Development of multiplex PCR panel for detection of anaerobic bacteria in clinical samples	24
An inexpensive anaerobic chamber for the genetic manipulation of strictly anaerobic bacteria	24
Acknowledgement to reviewers	24
First case report of Anaerobiospirillum succiniciproducens bacteremia in an HIV-infected patient in Taiwan - Molecular identification from a positive blood culture bottle	23
Establishment of a French surveillance system of Clostridiodes difficile infection: Comparison of patient’s characteristics with other national and European data	23
Community-onset Clostridioides difficile infection in south Serbia	22
Editorial Board	22
Clinical anaerobic infections in an Indian tertiary care hospital: A two-year retrospective study	22
Characterization of the components of the thioredoxin system in Bacteroides fragilis and evaluation of its activity during oxidative stress	21
Clostridioides difficile in food and food products of animal origin in Assam, India	20
Community-associated Clostridioides difficile infection in a general hospital from Argentina	20
Risk factors for recurrent healthcare-facility associated Clostridioides difficile infection in a Swedish setting	19
Editorial Board	19
Clinical usefulness of anaerobic blood culture in pediatric patients with bacteremia	19
Low usefulness of reporting tonsillar PCR Ct-values in pharyngeal infections with Fusobacterium necrophorum	18
Differences between bloodstream infections involving Gram-positive and Gram-negative anaerobes	17
Impact of the introduction of nucleic acid amplification testing on Clostridioides difficile detection and ribotype distribution in Wales	17

Polymicrobial anaerobic sepsis due to Bacteroides fragilis, Eggerthella lenta, Ruminoccocus gnavus, and Bilophila wadsworthia in a patient with myeloproliferative neoplasm	16
Clostridioides difficile infection in Africa: A narrative review	16
Identification of oral anaerobic bacteria and the beta-lactamase resistance genes from Iranian patients with periodontitis	15
Prevalence, genetic characteristics, and antimicrobial resistance of Clostridioides difficile isolates from horses in Korea	15
Linkage study of surveillance and hospital admission data to investigate Clostridium difficile infection in hospital patients in Perth, Western Australia	15
A case of Slackia exigua bacteremia associated with pyometra in a patient with poor dentition	14
Three cases of Sutterella wadsworthensis bacteremia secondary to abdominal infections	14
Antimicrobial susceptibility profiles of invasive isolates of anaerobic bacteria from a large Canadian reference laboratory: 2012–2019	14
Dogs in Rio de Janeiro as reservoirs of Clostridioides difficile ribotypes causing CDI in humans	13
Add-on interventions for the prevention of recurrent Clostridioides Difficile infection: A systematic review and network meta-analysis	13
The first case of septic arthritis of the knee caused by Eggerthia catenaformis	13
Molecular characterization of metronidazole resistant Bacteroides strains from Kuwait	13
Detailed analysis of metabolism reveals growth-rate-promoting interactions between Anaerostipes caccae and Bacteroides spp.	13
Clostridioides difficile infection promotes gastrointestinal dysfunction in human and mice post-acute phase of the disease	12
Laboratory diagnosis of Clostridioides (Clostridium) difficile infection in domestic animals: A short review	12
Ruminococcus gnavus bacteremia: Literature review and a case report associated with acute flare of ulcerative colitis in an immunocompromised patient	12
Prevalence and characterization of Clostridium perfringens isolated from different chicken farms in China	12
Genotypic and phenotypic diversity of carbapenem-resistant Bacteroides fragilis strains collected from different clinical origins	12
First large-scale study of antimicrobial susceptibility data, and genetic resistance determinants, in Fusobacterium necrophorum highlighting the importance of continuing focused susceptibility trend s	12
Anaerobic biodegradation of fluoxetine using a high-performance bacterial community	12
Toxinotyping and molecular characterization of antimicrobial resistance in Clostridium perfringens isolated from different sources of livestock and poultry	11
Rapid release of sepsis markers heparin-binding protein and calprotectin triggered by anaerobic cocci poses an underestimated threat	11
Systemic neutrophil degranulation and emergency granulopoiesis in patients with Clostridioides difficile infection	11
Clinical and microbiological characteristics of anaerobic bacteremia during 1994–2019: A Danish population-based cohort study	11
Molecular epidemiology of endemic Clostridioides difficile infection in Japan	11
Clostridioides difficile spores stimulate inflammatory cytokine responses and induce cytotoxicity in macrophages	11
Brain abscesses caused by anaerobic bacteria	10
First report of foodborne botulism due to Clostridium botulinum type A(B) from vegetarian home-canned pate in Hanoi, Vietnam	10
Non-oral Prevotella stepping into the spotlight	10
Bacteroides and related species: The keystone taxa of the human gut microbiota	10
Culture techniques for ciliate protozoa from the rumen: Recent advances and persistent challenges	10
Unravelling the eco-specificity and pathophysiological properties of Cutibacterium species in the light of recent taxonomic changes	10
Comparison of clinical characteristics, risk factors, and outcomes of patients infected with Bacteroides fragilis group at a tertiary care hospital in central China between 2017 and March 2024	10
Oxalobacter formigenes: A new hope as a live biotherapeutic agent in the management of calcium oxalate renal stones	10
Association between the gut and oral microbiome with obesity	10
Identification of cfxA gene variants and susceptibility patterns in β-lactamase-producing Prevotella strains	10
Comment on “Antimicrobial susceptibility of Bacteroides fragilis group organisms in Hong Kong, 2020–2021”	10
Hospitalized patients with diarrhea: Rate of Clostridioides difficile infection underdiagnosis and drivers of clinical suspicion	9
Antimicrobial susceptibility testing of anaerobic bacteria: In routine and research	9
The impact of Akkermansia muciniphila and its extracellular vesicles in the regulation of serotonergic gene expression in a small intestine of mice	9
Upregulation of the cfiA carbapenemase gene in a Bacteroides fragilis strain by the novel integrative and conjugative element Tn7563	9
Editorial Board	9
Approaching toxigenic Clostridia from a One Health perspective	9
Gardnerella vaginalis in urinary tract infections, are men spared?	9
Clostridioides difficile infection in patients with and without COVID-19 during the pandemic: A retrospective cohort study from a tertiary referral hospital	9
A metagenomic assessment of microbial communities in anaerobic bioreactors and sediments: Taxonomic and functional relationships	9
Prevalence of cpe-positive Clostridium perfringens in surface-attached soil of commercially available potatoes and its significance as a potential source of food poisoning	9
The role of extracellular structures in Clostridioides difficile biofilm formation	9
Evaluation of different antigenic preparations against necrotic enteritis in broiler birds using a novel Clostridium perfringens type G strain	9
Predominance of Clostridioides difficile PCR ribotype 181 in northern Greece, 2016–2019	8

Brain abscess caused by Parvimonas micra: A rare case report and literature review	8
First reported case of Lachnoanaerobaculum gingivalis bacteremia in an acute myeloid leukemia patient with oral mucositis during high dose chemotherapy	8
Changes in treatment of community-onset Clostridioides difficile infection after release of updated guidelines, Atlanta, Georgia, 2018	8
Lactobacillus acidophilus regulates abnormal serotonin availability in experimental ulcerative colitis	8
False amoxicillin/clavulanic acid susceptibility in Bacteroides fragilis using gradient strip tests	8
Carbapenem resistance in Bacteroides fragilis: A review of molecular mechanisms	8
Immunogenicity of a recombinant chimera composed of CROP domain segments from the hemorrhagic and lethal toxins of Paeniclostridium sordellii	8
Isoeugenol-functionalized nanogels inhibit peri-implantitis associated bacteria in vitro	8
Fatal Clostridium septicum myonecrosis from gastric perforation: A case report	8
Initial expression levels of nimA are decisive for protection against metronidazole in Bacteroides fragilis	8
Improvement of chronic GVHD after oral treatment with Clostridium butyricum (Miya BM)	8
Different breakpoints interpretation yielded distinct resistance rates to moxifloxacin of clinically significant anaerobic bacteria	8
Type IV pili facilitated natural competence in Fusobacterium nucleatum	8
Detection of co-infection of Gardnerella vaginalis and Atopobium vaginae using qualitative PCR: A better predictor of bacterial vaginosis	8
Clostridioides (Clostridium) difficile in adults with diarrhoea in Vietnam	7
Purification of RgpA from external outer membrane vesicles of Porphyromonas gingivalis	7
Intra-spinal abscess due to Bacteroides fragilis and Klebsiella pneumoniae co-infection in a child with spinal dysraphism	7
Impact of nicotine and cotinine on macrophage inflammatory plasticity via vesicular modifications in gastrointestinal bacteria	7
Prevalence of Clostridioides difficile in dogs (Canis familiaris) with gastrointestinal disorders in Rio de Janeiro	7
Generating a fucose permease deletion mutant in Bifidobacterium longum subspecies infantis ATCC 15697	7
An uncommon case of native joint septic arthritis by Parvimonas micra	7
Fusobacterium ulcerans: from gut to commensal and bacterial translocation?	7
Characterizing prophages in the genus Fusobacterium	7
Anaerobiospirillum succiniciproducens prosthetic joint infection	7
Editorial Board	7
Does over a century of aerobic phage work provide a solid framework for the study of phages in the gut?	7
Description of eight human infections caused by Bacteroides pyogenes in a tertiary hospital of northern Spain	7
Editorial Board	7
Urinary tract infections caused by anaerobic bacteria. Utility of anaerobic urine culture	7
Editorial Board	7
Unusual case of necrotizing pneumonia caused by Fusobacterium nucleatum complicating influenza a virus infection	7
Molecular study on metronidazole resistance in Bacteroides fragilis group isolates from a South Indian tertiary care center	7
Anti-toxin antibody is not associated with recurrent Clostridium difficile infection	7
Editorial Board	6
Fusobacterium necrophorum oral infections – A need for guidance	6
Persistent bacteremia and psoas abscess caused by a lethal toxin-deficient Paeniclostridium sordellii	6
Pauci-symptomatic foodborne botulism due to Clostridium botulinum type B with predominant ophthalmologic presentation possibly after consumption of honey	6
Clostridioides (Clostridium) difficile in children with diarrhoea in Vietnam	6
First description of Lachnoanaerobaculum orale as a possible cause of human bacteremia	6
Bacteremia due to Prevotella oris of probable hepatic origin	6
Identification of Clostridium innocuum hypothetical protein that is cross-reactive with C. difficile anti-toxin antibodies	6
Production and purification of Clostridium perfringens type C beta-toxin and IgG and IgY antitoxins	6
A significant decreased in the frequency of Clostridioides difficile infection at the Italian Hospital of Desio over the last decade	6
Cutibacterium acnes biofilm forming clinical isolates modify the formation and structure of Staphylococcus aureus biofilms, increasing their susceptibility to antibiotics	6
Clostridioides difficile PCR Tcdb Cycle Threshold predicts toxin EIA positivity but not severity of infection	6
A review of epidemiological models of Clostridioides difficile transmission and control (2009–2021)	6
What's a SNP between friends: The lineage of Clostridioides difficile R20291 can effect research outcomes	6
Clostridium perfringens from fresh water fish of Kashmir Himalaya and their aquatic environment: Toxinotyping and phylogenetic analysis	6
Oral teicoplanin administration suppresses recurrence of Clostridioides difficile infection: Proof of concept	6
Brain abscess mimicking acute stroke syndrome caused by dual Filifactor alocis and Porphyromonas gingivalis infections: A case report	6
Gas gangrene caused by spontaneous Clostridium septicum infection: A case study	6
Nonmammalian models to study Clostridioides difficile infection; a systematic review	6