ArticleMMWR. Morbidity and mortality weekly report2022
COVID-19 Outbreaks and Mortality Among Public Transportation Workers - California, January 2020-May 2022.
Article in MMWR. Morbidity and mortality weekly report, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Adherence to handwashing behaviour and its impact on the incidence and death of viral respiratory infectious diseases: a systematic review, meta-analysis and modelling study.BMJ global health · 2025Pooled it
- Incidence of severe COVID-19 among 1.2 million workers in Ontario, Canada.Occupational medicine (Oxford, England) · 2025Article
- Temporal Trends of Early COVID-19 Infections in New York City Transit Workers and Residents: March 01, 2020-May 02, 2020.Journal of urban health : bulletin of the New York Academy of Medicine · 2025Article
- Work-related connectivity between Boston Logan international airport and urban communities with high social vulnerability during the COVID-19 pandemic.Tropical diseases, travel medicine and vaccines · 2025Article
- "They Don't Really Consider Us Essential, But We Are": a Qualitative Investigation of Vaccine Acceptance and Perceived Workplace Safety Among Black Transit Workers During the COVID-19 Pandemic.Journal of racial and ethnic health disparities · 2024Article
- Inequality in COVID-19 mortality in Quebec associated with neighbourhood-level vulnerability domains.Canadian journal of public health = Revue canadienne de sante publique · 2024Article
- Occupational COVID-19 Exposures and Illnesses among Workers in California-Analysis of a New Occupational COVID-19 Surveillance System.International journal of environmental research and public health · 2023Article
- Carbon Dioxide Monitoring Demonstrates Variations in the Quality of Ventilation on Public Transportation Buses and University Student Shuttle Vans and Identifies Effective Interventions.Pathogens & immunity · 2023Article
- Seroprevalence of SARS-CoV-2 antibodies among public transport workers in Sweden.Journal of transport & health · 2022Article
- Analysis of the Face Mask Use by Public Transport Passengers and Workers during the COVID-19 Pandemic.International journal of environmental research and public health · 2022Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
14 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Work-related factors can contribute to risk for exposure to and infection with SARS-CoV-2, the virus that causes COVID-19, and subsequent COVID-19-attributable outcomes, including death. Comparing COVID-19 metrics across industries can help identify workers at highest risk. Elevated COVID-19 mortality rates have been reported among all transportation workers, as well as specifically in public transportation industries (1-3). The California Department of Public Health (CDPH) calculated public transportation industry-specific COVID-19 outbreak incidence during January 2020-May 2022 and analyzed all laboratory-confirmed COVID-19 deaths among working-age adults in California to calculate public transportation industry-specific mortality rates during the same period. Overall, 340 confirmed COVID-19 outbreaks, 5,641 outbreak-associated cases, and 537 COVID-19-associated deaths were identified among California public transportation industries. Outbreak incidence was 5.2 times as high (129.1 outbreaks per 1,000 establishments) in the bus and urban transit industry and 3.6 times as high in the air transportation industry (87.7) as in all California industries combined (24.7). Mortality rates were 2.1 times as high (237.4 deaths per 100,000 workers) in transportation support services and 1.8 times as high (211.5) in the bus and urban transit industry as in all industries combined (114.4). Workers in public transportation industries are at higher risk for COVID-19 workplace outbreaks and mortality than the general worker population in California and should be prioritized for COVID-19 prevention strategies, including vaccination and enhanced workplace protection measures.
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