Rodent adapted marburg viruses are lethal in ferrets
Bibliographic record
Abstract
Ferrets are highly susceptible to infection with several orthoebolaviruses, including Ebola virus (EBOV), yet they are refractory to infection with the orthomarburgviruses, Marburg virus (MARV) and Ravn virus. This study sought to investigate the pathogenicity of rodent-adapted MARV in ferrets. Challenge with guinea pig-adapted (GPA)-MARV resulted in uniform lethality among ferrets, whereas challenge with mouse-adapted (MA)-MARV resulted in partial lethality. Ferrets challenged with GPA-MARV manifested clinical signs of filovirus disease, including a petechial rash. These animals supported high levels of viral replication and exhibited coagulation abnormalities exemplified by thrombocytopenia, a feature absent among ferrets challenged with GPA-EBOV. A dysregulated immune response and hematological perturbations were also observed among GPA-MARV-challenged ferrets. Lastly, several genome mutations appeared in GPA-MARV following ferret challenge. This study provides insight into the pathogenesis of MARV and represents the first report and characterization of a lethal Marburg virus ferret model.
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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 | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| 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 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".