ArticleMedical hypotheses2020
Are night shift workers at an increased risk for COVID-19?
Article in Medical hypotheses, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers, 2 of them syntheses that pooled it.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
15 citing papers in PubMed, 2 syntheses or guidelines pooled it, 34 citations in OpenAlex.
- Night-shift work and susceptibility to infectious diseases: a systematic review and meta-analysis.Scandinavian journal of work, environment & health · 2025Pooled it
- Influencing factors of sleep disorders and sleep quality in healthcare workers during the COVID-19 pandemic: A systematic review and meta-analysis.Nursing open · 2023Pooled it
- Impact of the COVID-19 Pandemic on Mortality Patterns in Bushehr Port of Iran: A Comparative Analysis of the Prepandemic Period (2014-2019) and the Pandemic Era (2020-2023).Influenza and other respiratory viruses · 2026Article
- Running out the clock: Circadian rhythm dysfunction in cognitive disease.International review of neurobiology · 2026Review
- Circadian re-set repairs long-COVID in a prodromal Parkinson's parallel: a case series.Journal of medical case reports · 2024Article
- Sleep and circadian rhythm disruption alters the lung transcriptome to predispose to viral infection.iScience · 2023Article
- Potential protective effect against SARS-CoV-2 infection by APOE rs7412 polymorphism.Scientific reports · 2022Article
- Obstructive sleep apnea and multiple facets of a neuroinflammatory response: a narrative review.Journal of thoracic disease · 2022Review
- Shift work is associated with increased risk of COVID-19: Findings from the UK Biobank cohort.Journal of sleep research · 2021Article
- Neurodegeneration, memory loss, and dementia: the impact of biological clocks and circadian rhythm.Frontiers in bioscience (Landmark edition) · 2021Review
- The Coronavirus Disease 2019 (COVID-19): Key Emphasis on Melatonin Safety and Therapeutic Efficacy.Antioxidants (Basel, Switzerland) · 2021Review
- Cognitive Impairment and Dementia: Gaining Insight through Circadian Clock Gene Pathways.Biomolecules · 2021Review
- Association of working shifts, inside and outside of healthcare, with severe COVID-19: an observational study.BMC public health · 2021Observational
- Developing a Flexible National Wastewater Surveillance System for COVID-19 and Beyond.Environmental health perspectives · 2021Article
- Burden of Sleep Disturbance During COVID-19 Pandemic: A Systematic Review.Nature and science of sleep · 2021Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Recent data has revealed an association between coronavirus disease-19 (COVID-19) incidence and seasonally regulated androgen sensitivity. This potential relationship between SARS-CoV-2 infection and clock genes, coupled with previously reported effects of night shift work on health, leads us to hypothesize that night shift workers may be at an increased physiological risk of coronavirus disease-19 (COVID-19). Shift work, especially night shift work, has long been associated with several chronic health conditions. The mechanisms that drive these associations are not well understood; however, current literature suggests that the disruption of circadian rhythms may cause downstream hormonal and immune effects that render night shift workers more susceptible to disease. First, circadian rhythms may play a role in the mechanism of viral infection, as viral vaccines administered in the morning elicit greater immune responses than those administered in the afternoon. Next, increased exposure to light at night may inhibit the production of melatonin, which has been observed to enhance DNA repair and shown to upregulate expression of Bmal1, an established inhibitor of herpes simplex virus and influenza. Finally, abnormal immune cell and cytokine levels have been observed following night-shift work. These data suggest that further research is warranted and that high-risk occupations should be taken into consideration as public health policies are introduced and evolve.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.