Detection of <i>Yersinia pestis</i> over time in seeded bottled water samples by cultivation on heart infusion agar
Bibliographic record
Abstract
The viable persistence of Yersinia pestis seeded in bottled spring water was evaluated by performing 2 studies that involved inoculating a total of 21 different test strains into individual 500 mL reservoirs. Approximately 2 x 104 CFU/mL of Y. pestis was inoculated into each reservoir and held for sampling at 26 degrees C +/- 1 degrees C. In study No. 2, 9 strains (Harbin, Nepal, UNH 1A, UNH 1B, ZE94, CO92, PB6, PB6 DP, and Pexu) could no longer be recovered using a plate count assay between 79 and 138 days post-seeding; other strains (K25 lcr, O19 Ca-6, and K25 pst) could no longer be recovered between 112 and 160 days post seeding. The data generated in this study demonstrate that certain strains of Y. pestis can remain viable in bottled water for extended periods of time.
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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 | 0.000 |
| 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".