Molecular and Antigenic Characterization of Triple-Reassortant H3N2 Swine Influenza Viruses Isolated from Pigs, Turkey and Quail in Canada
Bibliographic record
Abstract
In 2005, triple-reassortant H3N2 (trH3N2) influenza A viruses were isolated from swine and turkeys in Canada. Subsequently, these viruses were isolated from humans and mink in 2006 and 2007, respectively. Following full genome sequencing, H3N2 viruses isolated from turkeys (2005), quail (2008) and swine (2009) in Canada, were characterized as trH3N2. The 2005 turkey isolate was found to be almost identical to other viruses isolated in that year, with quail and pig isolates related very closely to the 2005 trH3N2. Minimal antigenic evolution of the swine isolates relative to the reference 2005 virus was observed. These results suggest the establishment of a stable lineage of trH3N2 in Canadian pigs, with evidence for interspecies transmission to turkeys and quails.
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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 | 0.001 | 0.001 |
| Science and technology studies | 0.001 | 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) | 0.000 | 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".