An outbreak of Potomac horse fever
Bibliographic record
Abstract
ABSTRACT: Potomac horse fever (PHF) is caused by Neorickettsia risticii and the recently identified Neorickettsia findlayensis and is characterized by clinical signs such as diarrhea, hyporexia, and lethargy. PHF outbreaks are uncommon. The aim of this report is to describe the epidemiological, clinical, clinicopathological, and molecular aspects of a PHF outbreak in Brazil. An outbreak of gastrointestinal disease was investigated, and clinical and laboratory evaluations were performed in affected animals. A total of 37 out of 216 horses (17%) were affected by diarrhea, lethargy, and hyporexia during the outbreak. Only one horse developed laminitis, and five horses died. Blood and fecal samples from 17 of 37 affected mares were tested for N. risticii by qPCR. N. risticii was detected in 16/17 fecal samples and 11/16 blood samples. Oxytetracycline (BID) was an effective treatment for affected horses. The genetic analysis of N. risticii revealed similarity with strains described in North America. PHF must be included in the differential diagnosis of adult horses presenting diarrhea in Brazil.
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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 | 0.000 |
| Science and technology studies | 0.001 | 0.001 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.001 |
| Research integrity | 0.001 | 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".