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Record W4415741038 · doi:10.1590/0103-8478cr20240596

Isolation of Clostridioides difficile from the feces of equids and ruminants in a teaching veterinary hospital

2025· article· pt· W4415741038 on OpenAlexaff
Fabrício Moreira Cerri, Roberta Martíns Basso, Lia Mara Netto Dornelles, Thaís Teresa Brandão Cavalheiro Ribeiro, Geraldo Alves Neto, Rodrigo Otávio Silveira Silva, Amanda Haisi, João Pessoa Araújo, José P. Oliveira‐Filho, Luis G. Arroyo, Alexandre Secorun Borges

Bibliographic record

VenueCiência Rural · 2025
Typearticle
Languagept
FieldMedicine
TopicClostridium difficile and Clostridium perfringens research
Canadian institutionsUniversity of Guelph
FundersCoordenação de Aperfeiçoamento de Pessoal de Nível SuperiorFundação de Amparo à Pesquisa do Estado de São Paulo
KeywordsFecesClostridioidesIsolation (microbiology)Multiplex polymerase chain reactionAntimicrobialTeaching hospitalPolymerase chain reactionAntibiotic resistance

Abstract

fetched live from OpenAlex

ABSTRACT: Clostridioides difficile is an important enteropathogen in humans and multiple animal species. This study determined the fecal occurrence of C. difficile in hospitalized or healthy equids and ruminants at a veterinary teaching hospital. A total of 84 fecal samples from ruminants and equids and ten environmental swabs were collected. The samples were cultured under anaerobic conditions to isolate C. difficile. DNA was extracted from C. difficile colonies and subjected to multiplex PCR to identify toxin-coding genes. The isolates were ribotyped, with the toxigenic isolates and one selected non-toxigenic isolate submitted for whole-genome sequencing. C. difficile was isolated from 10/84 (12%) of the fecal samples, of which one bovine isolate was toxigenic (A+B+ CDT -), classified as RT 046/ST35/clade 1, and carried five antimicrobial resistance genes (ermB, tetA, tetB, tetM, and inuP). Although, the occurrence of toxigenic strains was low, the study identified isolates kept in the hospital environment, highlighting the need for preventive measures, especially due to the presence of numerous animals undergoing antimicrobial therapy.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

How this classification was reachedexpand

Full frame machine prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. The Gemma side is a direct model label for every work in the frame, read from the title-only record. The Codex side is a classifier learned from the 10,348 direct Codex labels and calibrated to design-weighted sample rates; fields without enough sample support carry no Codex call. Candidate is the union of the two sides; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.001
Version: metacan-v3-hybrid-931329e0061cValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Observational · Consensus signal: Observational
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.004
Threshold uncertainty score0.009

Distilled classifier scores by category (both heads)

CategoryCodexGemma
Metaresearch0.0000.001
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0010.001
Science and technology studies0.0010.000
Scholarly communication0.0010.000
Open science0.0000.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0020.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.019
GPT teacher head0.309
Teacher spread0.291 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it

Classification

machine, unvalidated

Machine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.

The models applied no category: nothing in the taxonomy fit this work.
Study designObservational
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations0
Published2025
Admission routes1
Has abstractyes

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