Relationships between in vitro Susceptibility and Efficacy in Experimental Mouse Infection-Protection Assay of Cefazolin and Cephalothin using Escherichia coli Strains
Why this work is in the frame
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Bibliographic record
Abstract
The disc sensitivity and minimal inhibitory concentrations (MIC) of cefazolin and cephalothin were compared against a series of Escherichia coli isolates. These data were correlated with the mouse protective doses of the 2 cephalosporins in animals infected with E. coli strains selected according to their various degrees of in vitro sensitivity to the 2 cephalosporins. The overwhelming majority of E. coli strains showed a significantly higher degree of susceptibility and lower MIC values for cefazolin than for cephalothin. There has been found a good correlation between the inhibition zones and especially the MIC values and the ED50 results for both cephalosporins. Using E. coli clinical isolates, cefazolin was found to be superior to cephalothin not only in vitro experiments but also more potent in protecting the experimentally infected mice.
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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 it