OBSERVATIONS O N GROUP-F STREPTOCOCCI FROM HUMAN SOURCES
Bibliographic record
Abstract
I N comparison with the vast literature concerning group-A streptococci, our knowledge of group-F streptococci is very meagre and there is little published work concerning them. This report documents a series of 22 strains isolated from children and puerperal women during about 4 years and discusses their significance in human disease. MATERIALS AND METHODS Primary cultures were inoculated on horse-blood agar (BBL Columbia Base; Becton, Dickinson and Co., Canada, Ltd, Mississauga, Ontario) and incubated at 37°C under aerobic and anaerobic conditions for up to 48 h. Haemolytic colonies were examined microscopically and Gram-positive cocci were inoculated into Todd-Hewitt Broth (BBL). These cultures were incubated at 37°C overnight and used for preparing antigen by the method of Rantz and Randall (1955). Lancefield groups were determined by the micro-precipitin technique (Lancefield, 1938) with grouping sera purchased from Burroughs Wellcome Ltd, Beckenham, Kent. Sensitivity to bacitracin (Maxted, 1953) was tested with standard bacitracin disks (BBL Tax0 A) and Columbia horse-blood agar. Some strains were inoculated on to aesculin-bile-agar slopes (Difco Aesculin Bile Agar, Difco Laboratories, Detroit, USA) or aesculin-agar slopes.
Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.
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) | 0.001 | 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".