CARACTERIZAÇÃO GENOTÍPICA DE CEPAS DE Salmonella Heidelberg DE ORIGEM AVÍCOLA
Bibliographic record
Abstract
A salmonelose é uma das principais causas de gastroenterite de origem alimentar no Brasil e o sorovar Salmonella Heidelberg (SH) está envolvido em casos graves.O estudo objetivou avaliar aspectos genotípicos presentes em 20 cepas de SH isoladas de carne de frango comercializados pela indústria brasileira para determinar o perfil de virulência via PCR convencional e a proximidade genética por PFGE.Todas as cepas apresentaram os genes ompC, invA, sodC, avrA, lpfA, e agfA, já o gene luxS foi detectado em 70% destas.A presença de diferentes genes de virulência revela que este sorovar pode representar uma ameaça à saúde pública.Houve elevada diversidade genética entre as cepas, que se agruparam em seis pulsotipos com características epidemiológicas e moleculares comuns.Concluise que as cepas apresentaram perfil multivirulento, distinguível pelo luxS e distanciamento genético compatível aos desafios relacionados à capacidade adaptativa do sorovar e às dificuldades de controle na indústria avícola.
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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 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 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".