Epidemiological Survey of an A/H1N1 Influenza Accumulative Occurrence on Aircraft
Bibliographic record
Abstract
Objective To approach the reason and potential route of transmission by analyzing the epidemiological characteristic of A/H1N1 influenza outbreaks in the aircraft,and to provide the reference for prevention and control of A/H1N1 influenza.Methods Face-to-face investigation and field investigation were used to describe the whole process and epidemiological features.The correlation factors were investigated by using case-control study.Results There were 8 final diagnosis cases of A/H1N1 influenza reported in this occurrence.The invasive time of the first case was May 27th,2009,while the time distribution of the other cases was centered from May 30th to June 1st.Using mouth-muffle had statistical significance during the trip from Vancouver to Hongkong,so as using toilet numbered 7 whose OR was 4.8(95% CI:0.5～56).Conclusions The epidemiological curve showed the point-source character in this outbreak.The possible origin came from Liner CX889,and the possible conveying place was the toilet at the end of the aircraft where the first case had vomited.The normalization and accuracy of sampling,the conservation and transportation of sample,and the laboratory detection quality control of viral nucleic acid in laboratory detection were the criticality of case discovery and secondary case occurrence prevention.
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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 | 0.000 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.001 | 0.001 |
| 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 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".