249d - Disrupting the chains of transmission of SARS-CoV-2 on a pre-vaccine movie production
Bibliographic record
Abstract
Abstract A zero workplace-transmission rate COVID-19 rate was accomplished, pre-vaccine, on a Canadian movie production as a result of a comprehensive OHS prevention programme. Developed as a joint management-union collaboration in the complex US-Canada entertainment industry, the programme was designed to prevent the hazard of SARS-CoV-2 from entering indoors and outdoors workplaces. COVID-19 is a novel infectious airborne respiratory disease carried by mobile individuals, both symptomatic and asymptomatic. It can enter the workplace and cause other workers to be infected, then exit the workplace to infect others. There is no exposure limit, nor are there easy personal-portable air sampling & analytical methods. The traditional NIOSH Hierarchy of Controls is a compromised model since elimination and substitution are not applicable. The prevention programme therefore consisted of a comprehensive set of controls, including PCR COVID-19 testing with frequency defined according to pre-determined risk groups; masking & social distancing based on time limitations including during filming when crew and performers work in close proximity; remote check-in procedures based on personal observations of disease signs/symptoms; installation of MERV13 filters in studio ventilation systems. The local COVID Compliance team consisted of a doctor-nurse group, a committed management team, a CIH COVID Compliance Officer, all supported by the studio system and its Canadian OHS consulting contractor led by a CIH. Of critical importance was a highly disciplined work force that conscientiously respected the OHS requirements, and the education work of the COVID Compliance Team. In summary, COVID-19 as an occupational disease is preventable.
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 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 | 0.000 | 0.000 |
| Science and technology studies | 0.001 | 0.000 |
| Scholarly communication | 0.001 | 0.000 |
| Open science | 0.001 | 0.001 |
| Research integrity | 0.000 | 0.001 |
| Insufficient payload (model declined to judge) | 0.009 | 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".