Post-weaning diarrhea and mortality caused by Escherichia coli, investigation of risk factors and control methods
Bibliographic record
Abstract
Post-weaning 'Escherichia coli' diarrhea (PWECD) in Ontario was investigated using a case-control study and a vaccination trial. The ' E. coli' serogroups involved in PWECD were identified in a study involving 50 Ontario nurseries. The clinical signs, the impact on productive parameters and epidemiological risk factors were determined by means of a producer survey. The 'E. coli' serogroups involved in disease were resistant to multiple antibiotics. PWECD was shown to be an economically important disease in Ontario. Factors such as the use of detergent in cleaning procedures, feed manufacturing, and the Porcine Reproductive and Respiratory Syndrome (PRRS) vaccination status for nursery pigs and sows, were found to be associated with the disease. These relationships need to be investigated further. The efficacy of a live oral and killed intramuscular 'E. coli' vaccine for the control of disease were evaluated on two commercial farms with PWECD. Neither vaccine provided a solution against PWECD in the herds tested.
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 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 | 0.001 | 0.002 |
| 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".