[Molecular-biological characteristic of Yersinia enterocolitica circulating in various regions of Russian Federation].
Bibliographic record
Abstract
AIM: Complex characteristic by phenotype signs and main virulence genes of Yersinia enterocolitica strains circulating in various regions of Russian Federation. MATERIALS AND METHODS: 46 strains of Y. enterocolitica of 2 - 4 biotypes and 401 strains of Y. enterocolitica IA biotype isolated in 15 administrative territories of Russian Federation (Siberian, Far Eastern, Northwestern, Urals Federal Districts) from infected people, rodents, agricultural animals, birds, the environment were studied. Phagotyping was performed in the reference laboratory of the Pasteur Institute (Paris). All the Y. enterocolitica cultures were studied for the presence of ail, ystB and ystA genes by PCR method. Presence of virulence plasmid pYVwas determined by gel electrophoresis by T. Kieser method. RESULTS: 447 strains of Y. enterocolitica biotype 1A and 2 - 4 were studied. Most of the strains belonged to serotypes O:3; O:9; O: 5; O: 6,30; O:6,31; O:7,8. Phagotyping was performed for part of the strains. Phagotypes Xz and Xo were determined in biotype 1A strains. 2 - 4 biotype strains circulating in Siberia and the Far East were characterized by phagotype VIII, X3 that are present in other countries, and phagotype Xz that is spread only in Russia. Phagotypes IXa, IXb, II that are characteristic for strains from Canada, South Africa, Japan were not detected in Russian Federation. All the strains of 2 - 4 biotypes had ail and ystA genes. Most of the recently isolated strains had pYV. The only pathogenicity factor detected in 81.3% of biotype 1A strains including 14 strains from patients was ystB gene. These infections were accompanied by an expressed clinical symptomatology of enteritis and enterocolitis. CONCLUSION: Isolation of 1A biotype strains from patients necessitates execution of diagnostic studies of intestinal yersiniosis in patients with diagnosis "acute intestinal infection of undetermined etiology".
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How this classification was reachedexpand
Full frame machine prediction
Teacher imitationNot 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.
Distilled classifier scores by category (both heads)
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.001 | 0.000 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one source (direct Gemma or distilled Codex), not a consensus.
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".