OOIR: Observatory of International Research

Papers

(The TQCC of Anaerobe is 7. 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 2021-08-01 to 2025-08-01.)

Article	Citations
Polymorphonuclear neutrophil depletion in ileal tissues reduces the immunopathology induced by Clostridioides difficile toxins	85
Comparison of disc diffusion and Sensititre® Broth Microdilution methods for antimicrobial susceptibility testing of Bacteroides fragilis group clinical isolates following the French guidelines	72
Presence of Clostridioides difficile in cattle feces, carcasses, and slaughterhouses: Molecular characterization and antibacterial susceptibility of the recovered isolates	43
Culture techniques for ciliate protozoa from the rumen: Recent advances and persistent challenges	38
First case of necrotizing fasciitis and bacteremia caused by Bifidobacterium breve	38
Editorial Board	37
Clostridium perfringens from fresh water fish of Kashmir Himalaya and their aquatic environment: Toxinotyping and phylogenetic analysis	33
Clostridium perfringens antigens and challenges for development of vaccines against necrotic enteritis in poultry	30
Clostridioides (Clostridium) difficile in children with diarrhoea in Vietnam	30
Fusobacterium necrophorum septic arthritis of the hip: A case-report and literature review	29
Carbapenem resistance in Bacteroides fragilis: A review of molecular mechanisms	27
Fulminant clostridioides (costridium) difficile infection caused by a rare strain of PCR-ribotype 153 in Japan: A case report	27
Approaching toxigenic Clostridia from a One Health perspective	26
Oral infection with a periodontal pathogen alters oral and gut microbiomes	26
Membrane vesicles of Lactobacillus gasseri ATCC 19992 disrupt biofilms of vaginal pathogens	25
Evaluation of polymerase chain reaction-based open reading frame typing method for the clonality investigation of Clostridioides difficile isolates	24
Contamination of home-grown and retail vegetables with Clostridioides difficile	22
Development and clinical validation of an automated cell cytotoxicity neutralization assay for detecting Clostridioides difficile toxins in clinically relevant stools samples	22
Clostridium perfringens epsilon-toxin requires acid sphingomyelinase for cellular entry	21
Changes in the solid-associated bacterial and fungal communities following ruminal in vitro fermentation of winery by-products: aspects of the bioactive compounds and feed safety	20
Anaerobes in specific infectious and noninfectious diseases: new developments	19
“Breast abscess in a male patient due to Finegoldia magna and Bifidobacterium scardovii: An unusual entity”	19
Clinical characteristics of Actinotignum schaalii bacteremia in a Japanese tertiary hospital	18
Airborne spores’ dissemination of a swine associated Clostridioides difficile clone	18
Study on acute exposure of polyethylene terephthalate microplastics on the performance of anammox granular sludge	18

Urinary tract infections: Should we think about the anaerobic cocci?	18
Clostridioides difficile in Latin America: A comprehensive review of literature (1984–2021)	18
Impact of MALDI-TOF MS identification on anaerobic species and genus diversity in routine diagnostics	17
AI4CDI: Introducing a novel machine learning approach to demonstrate feasibility of timely and early identification of at-risk populations for Clostridioides difficile infections	17
Growth of hydrogenotrophic methanogen Methanoculleus bourgensis MAB1 in the presence of dunite	17
A rare cause of bacteremia due to Porphyromonas asaccharolytica in a patient with necrotizing fasciitis	16
Clostridioides difficile toxin B suppresses human neutrophil migration	16
Antibiotic susceptibility and biofilm-forming ability of Veillonella strains	16
Characterization of G-type Clostridium perfringens bacteriophages and their disinfection effect on chicken meat	16
Human neutrophils are resistant to Clostridioides difficile toxin B	16
Prevalence, molecular characterization, and antimicrobial resistance profile of Clostridium perfringens from India: A scoping review	16
Multi-year comparison of VITEK® MS and 16S rRNA gene sequencing performance for the identification of rarely encountered anaerobes causing invasive human infections in a large Canadian region: can our	16
Novel and rare β-lactamase genes of Bacteroides fragilis group species: Detection of the genes and characterization of their genetic backgrounds	16
Peptostreptococcus anaerobius: Pathogenicity, identification, and antimicrobial susceptibility. Review of monobacterial infections and addition of a case of urinary tract infection directly identified	16
Increase of healthcare-onset Clostridioides difficile infection in adult population since SARS-CoV-2 pandemic: A retrospective cohort study in a tertiary care hospital from 2019 to 2022	15
Serine affects engulfment during the sporulation process in Clostridium perfringens strain SM101	14
Clostridioides difficile: New global perspectives	14
A rare case of necrotizing fasciitis of the abdominal wall due to Hungatella effluvii and Streptococcus constellatus	14
A rubrerythrin locus of Clostridioides difficile encodes enzymes that efficiently detoxify reactive oxygen species	14
Editorial Board	14
Clostridioides difficile hypervirulent strain ST1 isolated from clinical stool specimens obtained from three Provinces in South Africa	13
In vivo model of Propionibacterium (Cutibacterium) spp. biofilm in Drosophila melanogaster	13
Rumen and fecal microbial profiles in cattle fed high lignin diets using metagenome analysis	13
Archaea from the gut microbiota of humans: Could be linked to chronic diseases?	13
Desulfovibrio desulfuricans Bacteraemia and Associated Liver Abscess: Case Report and Literature Review	13
Evaluation of hydrocortisone as a strain-dependent growth-regulator of Porphyromonas gingivalis	12
Bacteremia due to Parabacteroides distasonis: Experience with 4 cases	12
Clostridioides (Clostridium) difficile in children and adolescents in the community in Cambodia	12
In vitro anti-clostridial action and potential of the spice herbs essential oils to prevent biofilm formation of hypervirulent Clostridioides difficile strains isolated from hospitalized patients with	12
Antimicrobial susceptibility of Bacteroides fragilis group organisms in Hong Kong, 2020–2021	12
Clinical significance of Bacteroides fragilis as a potential prognostic factor in colorectal cancer	12
Brain abscess caused by Porphyromonas gingivalis and Eubacterium nodatum mimicking acute stroke	11
Clinical and microbiological characteristics of Ruminococcus gnavus bacteremia and intra-abdominal infection	11
Production of highly soluble and immuno-reactive recombinant flagellin protein of Clostridium chauvoei	11
Development of a clinical prediction model for recurrence and mortality outcomes after Clostridioides difficile infection using a machine learning approach	11
A narrative review of Clostridioides difficile infection in China	11
A culture-based and culture-independent approach to the study of landfill leachate bacterial and archaeal communities	11
Evaluation of disk diffusion method for testing the rifampicin, erythromycin, and tetracycline susceptibility of Clostridioides (prev. Clostridium) difficile	11
Fecal shedding of Clostridioides difficile in calves in Sao Paulo state, Brazil	11
Reconsidering the in vivo functions of Clostridial Stickland amino acid fermentations	11
Linkage study of surveillance and hospital admission data to investigate Clostridium difficile infection in hospital patients in Perth, Western Australia	10
Impact of COVID19 pandemic on the incidence of health-care associated Clostridioides difficile infection	10
Community-associated Clostridioides difficile infection in a general hospital from Argentina	10
Genotypic and phenotypic diversity of carbapenem-resistant Bacteroides fragilis strains collected from different clinical origins	10
Probiotics improve re-epithelialization of scratches infected by Porphyromonas gingivalis through up-regulating CXCL8-CXCR1/CXCR2 axis	10
Clinical usefulness of anaerobic blood culture in pediatric patients with bacteremia	10
Risk factors for recurrent healthcare-facility associated Clostridioides difficile infection in a Swedish setting	10
Molecular epidemiology of endemic Clostridioides difficile infection in Japan	10
A case of Slackia exigua bacteremia associated with pyometra in a patient with poor dentition	10
Comparative clinical outcomes evaluation of hospitalized patients infected with Clostridioides difficile ribotype 106 vs. other toxigenic strains	9

Clostridioides difficile infection promotes gastrointestinal dysfunction in human and mice post-acute phase of the disease	9
Prevalence of Clostridioides difficile in dogs (Canis familiaris) with gastrointestinal disorders in Rio de Janeiro	9
Evaluation of different antigenic preparations against necrotic enteritis in broiler birds using a novel Clostridium perfringens type G strain	9
Ruminococcus gnavus bacteremia: Literature review and a case report associated with acute flare of ulcerative colitis in an immunocompromised patient	9
Oral teicoplanin administration suppresses recurrence of Clostridioides difficile infection: Proof of concept	9
Fatal Clostridium septicum myonecrosis from gastric perforation: A case report	9
Detailed analysis of metabolism reveals growth-rate-promoting interactions between Anaerostipes caccae and Bacteroides spp.	9
Association between the gut and oral microbiome with obesity	9
Nonmammalian models to study Clostridioides difficile infection; a systematic review	9
Laboratory diagnosis of Clostridioides difficile infection: past, present and future	8
Phenotypic and genomic characterization of Clostridioides difficile strains involved in multiple recurrences	8
Transmission of toxigenic Clostridiodes difficile between a pet dog with diarrhea and a 10-month-old infant	8
Prevalence of cpe-positive Clostridium perfringens in surface-attached soil of commercially available potatoes and its significance as a potential source of food poisoning	8
Different breakpoints interpretation yielded distinct resistance rates to moxifloxacin of clinically significant anaerobic bacteria	8
Tribute to Dr. Hebe Mabel Bianchini	8
Septic shock caused by Slackia exigua in a patient with diabetes	8
Improvement of chronic GVHD after oral treatment with Clostridium butyricum (Miya BM)	8
Bacteremia due to Prevotella oris of probable hepatic origin	8
A review of epidemiological models of Clostridioides difficile transmission and control (2009–2021)	8
Antimicrobial susceptibility patterns of anaerobic bacteria at an Irish University Hospital over a ten-year period (2010–2020)	8
Clostridioides difficile in Australian dairy farms	8
Fusobacterium ulcerans: from gut to commensal and bacterial translocation?	8
Incidence of healthcare-associated Clostridioides difficile infection in a quaternary referral university hospital in Brazil	7
Non-steroidal anti-inflammatory drugs are not associated with increased risk of Clostridioides difficile infection: A propensity-score-matched case-control study	7
Clostridium septicum endophthalmitis as the first manifestation of a colon adenocarcinoma: A case report	7
A first case of prosthetic joint infection with Actinomyces radingae	7
A cortex-specific penicillin-binding protein contributes to heat resistance in Clostridioides difficile spores	7
Botulism during SARS-CoV-2 pandemic: The importance of differential diagnoses	7
A comparison of the antimicrobial resistance of fecal Bacteroides isolates and assessment of the composition of the intestinal microbiotas of carbapenem-treated and non-treated persons from Belgium an	7
Fusobacteria behaving badly: Masquerading strains of strictly anaerobic Escherichia coli misidentified due to the deletion of the hemB gene	7
Obituary of Mike Cox (1945–2024)	7
Survival of bovine digital dermatitis treponemes in conditions relevant to the host and farm environment	7
Antimicrobial resistance progression in the United Kingdom: A temporal comparison of Clostridioides difficile antimicrobial susceptibilities	7
Bacteremia due to Hungatella effluvii in a patient with end-stage renal failure requiring hemodialysis: a case report and literature review of human infections caused by Hungatella spp.	7
Editorial Board	7
The impact of 30-day antecedent antibiotic exposure on Clostridioides difficile ribotype patterns and the relationship with clinical outcomes: A single center study	7
Novel transcriptional regulator OxtR1 regulates potential ferrodoxin in response to oxygen stress in Treponema denticola	7
Clostridioides difficile infection and testing rates in South Africa: A multicentre study, 2017–2020	7
Cultivation of anaerobic bacteria: Foundations and principles	7
Butyricimonas faecihominis and Eubacterium callanderi mixed bloodstream infection after appendicular peritonitis	7
A rapid genome-proteome approach to identify rate-limiting steps in the butyrate production pathway in probiotic Clostridium butyricum, CBM588	7
Antimicrobial susceptibility of anaerobic clinical isolates: A two-year surveillance	7
Misidentification of Phocaeicola (Bacteroides) dorei in two patients with bacteremia	7
Rapid detection and surveillance of cfiA-positive Bacteroides fragilis using matrix-assisted laser desorption ionization time-of-flight mass spectrometry	7