Elimination of porcine respiratory coronavirus by early weaning and segregation
Bibliographic record
Abstract
Porcine respiratory coronavirus (PRCV) is considered a variant of transmissible gastroenteritis virus (TGEV). This virus is endemic in North America. Porcine respiratory coronavirus and TGEV may be differentiated on the basis of a blocking enzyme-linked immunosorbent assay. Negative status for PRCV is required by certain countries wishing to import swine from North America. A study was conducted to determine if PRCV-negative piglets could be produced from PRCV-positive sows by early weaning and removal off-site for rearing. Forty piglets were early weaned from a PRCV-positive sow herd and tested monthly for PRCV antibodies and virus for a total of 4 months. While some piglets tested positive for PRCV at the beginning of the study, all pigs tested negative at the end of the study. This study demonstrates a method by which PRCV-negative animals may be attained for the purposes of export to countries requiring PRCV-negative status.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 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) | 0.000 | 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 teacher head, 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".