Bronchopneumonia in two dairy calves associated with <i>Mannheimia</i> species cluster V infection
Bibliographic record
Abstract
The pathological, bacteriological, and molecular findings of two 3-week-old Holstein calves with bronchopneumonia are presented. Heavy pure growth of a Mannheimia species most closely aligned with the unnamed cluster V strains on the basis of 16S ribosomal RNA sequencing was detected in the lungs of both calves in association with Bovine respiratory syncytial virus infection. While Mannheimia species closely related to cluster V strains have occasionally been reported in association with pneumonia, meningitis, and abortion in cattle, the current report provides a description of the gross and histopathological lesions produced by a cluster V strain of Mannheimia species. Lesions in the lung were found to be typical of those described for Mannheimia haemolytica with the absence of areas of coagulation necrosis rimmed by leukocytes and more pronounced intra-alveolar hemorrhage. Lesions were linked to the presence of leukotoxin A based on phenotypic hemolysis and molecular demonstration of the leukotoxin A gene.
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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 | 0.001 | 0.002 |
| Meta-epidemiology (narrow) | 0.001 | 0.001 |
| Meta-epidemiology (broad) | 0.001 | 0.001 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.002 | 0.001 |
| 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".