Randomized, Double-Blind, Placebo-Controlled Trial to Assess the Rate of Recurrence of Oculorespiratory Syndrome Following Influenza Vaccination among Persons Previously Affected
Bibliographic record
Abstract
During the 2000-2001 influenza immunization campaign in Canada, an oculorespiratory syndrome (ORS) was recognized as adverse event associated with one of the vaccines administered. The initial surveillance case definition for ORS in 2000-2001 specified onset within 24 h after vaccination and resolution within 48 h after onset; the restriction on the duration of ORS was removed from the case definition for the vaccine distributed during the 2001-2002 influenza season. The implicated vaccine contained large aggregates of unsplit virions; alterations to the manufacturing process for the vaccine distributed during 2001-2002 addressed this. A randomized, double-blind, placebo-controlled trial assessed the safety of the reformulated version in previously affected adults. The trial was halted early, after 61 participants had received an injection (34 had received vaccine, and 27 had received placebo). The vaccine-attributable recurrence rate for onset of ORS within 24 h after injection was 33% (95% confidence interval [CI], 10%-53%); for cases that resolved within 48 h, this rate was 27% (95% CI, 5%-47%). Previously affected persons should be informed of the risk of ORS recurrence but also that episodes of such recurrence are mild and well tolerated.
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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 | 0.003 | 0.006 |
| Meta-epidemiology (narrow) | 0.002 | 0.001 |
| Meta-epidemiology (broad) | 0.006 | 0.002 |
| Bibliometrics | 0.001 | 0.000 |
| Science and technology studies | 0.001 | 0.002 |
| Scholarly communication | 0.001 | 0.001 |
| Open science | 0.002 | 0.001 |
| Research integrity | 0.004 | 0.003 |
| Insufficient payload (model declined to judge) | 0.006 | 0.001 |
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".