Selection of Sorbent for Poliovirus Vaccine Strain Concentrate Purification by Gel Filtration
Bibliographic record
Abstract
In the production of anti-virus vaccines, the replacement of wild-type with attenuated strains is becoming relevant. Sabin strains are the most suitable candidates for this replacement in the production of inactivated poliovirus vaccines. The main problem in the development of methods for purification of viral particles of Sabin strains is the preservation of their stability and antigenic properties. We have compared the sorbents used for gel-filtration of poliovirus concentrates and have selected a chromatographic resin, Sephacryl S-300HR, which provides a high yield of the target product and its high purity both during cultivation in roller bottles and in bioreactors. It was also shown that, along with effective purification, Sephacryl S-300HR allows preservation of the polyovirus antigenic properties and can be used in the preparation of monovalent inactivated poliovirus concentrates that meet the good quality requirements. inactivated polio vaccine (IPV), oral polio vaccine (OPV), poliomyelitis, chromatographic purification, gel filtration The authors grateful to L.P. Antonova and A.A. Butusova for their assistance in conducting the research.
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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 | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.001 | 0.000 |
| Meta-epidemiology (broad) | 0.001 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.001 | 0.001 |
| Insufficient payload (model declined to judge) | 0.002 | 0.002 |
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".