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Kobayashi T, Heinemann J, Trannel A, Marra AR, Alsuhaibani M, Etienne W, Sheeler LL, Abosi O, Holley S, Kukla MB, Dains A, Jenn KE, Meacham H, Hanna B, Ford B, Brust K, Wellington M, Hartley PG, Diekema DJ, Salinas JL. Coronavirus disease 2019 (COVID-19) among nonphysician healthcare personnel by work location at a tertiary-care center, Iowa, 2020-2021. Infect Control Hosp Epidemiol 2023; 44:1351-1354. [PMID: 35652600 PMCID: PMC9203358 DOI: 10.1017/ice.2022.148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2022] [Revised: 05/09/2022] [Accepted: 05/20/2022] [Indexed: 11/27/2022]
Abstract
We describe COVID-19 cases among nonphysician healthcare personnel (HCP) by work location. The proportion of HCP with coronavirus disease 2019 (COVID-19) was highest in the emergency department and lowest among those working remotely. COVID-19 and non-COVID-19 units had similar proportions of HCP with COVID-19 (13%). Cases decreased across all work locations following COVID-19 vaccination.
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Affiliation(s)
- Takaaki Kobayashi
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - John Heinemann
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Alexandra Trannel
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Alexandre R. Marra
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
- Instituto Israelita de Ensino e Pesquisa Albert Einstein, Hospital Israelita Albert Einstein, São Paulo, Brazil
| | | | - William Etienne
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | | | - Oluchi Abosi
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Stephanie Holley
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Mary Beth Kukla
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Angelique Dains
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Kyle E. Jenn
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Holly Meacham
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Beth Hanna
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Bradley Ford
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | - Karen Brust
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
| | | | | | - Daniel J. Diekema
- University of Iowa Hospitals & Clinics, Iowa City, Iowa, United States
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Alghader MRM, Valvi D, de la Hoz RE. Transmission and Risk Factors of COVID-19 among Health Care Workers. Semin Respir Crit Care Med 2023; 44:340-348. [PMID: 37015285 DOI: 10.1055/s-0043-1766118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
Coronavirus disease 2019 (COVID-19) poses a significant occupational risk factor to health care workers (HCWs). As in previous events, this occupational risk amplifies and compounds the adverse impact of the pandemic. We conducted a narrative review summarizing risk factors associated with severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) transmission in HCWs. We searched for original observational studies (including case-control, cross-sectional, prospective and retrospective cohorts) using PubMed, Scopus, and Google Scholar. A total of 22 articles were reviewed, including eligible English articles published between April 2020 and May 2022. Job category, work environment, personal protective equipment (PPE) noncompliance, lack of PPE awareness and training, unvaccinated status, and competing community and household exposures were identified as risk factors for SARS-CoV-2 transmission among HCWs. Effective measures to protect HCWs from SARS-CoV-2 need to account for the identified occupational risk factors. Identifying and understanding COVID-19 risk factors among HCWs must be considered a public health priority for policy makers to mitigate occupational and community transmission in current and future epidemics.
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Affiliation(s)
- Majdi R M Alghader
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Damaskini Valvi
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Rafael E de la Hoz
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, New York
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Tandjaoui-Lambiotte Y, Lomont A, Moenne-Locoz P, Seytre D, Zahar JR. Spread of viruses, which measures are the most apt to control COVID-19? Infect Dis Now 2023; 53:104637. [PMID: 36526247 PMCID: PMC9746078 DOI: 10.1016/j.idnow.2022.12.002] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2022] [Revised: 11/22/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
The persistent debate about the modes of transmission of SARS-CoV2 and preventive measures has illustrated the limits of our knowledge regarding the measures to be implemented in the face of viral risk. Past and present (pandemic-related) scientific data underline the complexity of the phenomenon and its variability over time. Several factors contribute to the risk of transmission, starting with incidence in the general population (i.e., colonization pressure) and herd immunity. Other major factors include intensity of symptoms, interactions with the reservoir (proximity and duration of contact), the specific characteristics of the virus(es) involved, and a number of unpredictable elements (humidity, temperature, ventilation…). In this review, we will emphasize the difficulty of "standardizing" the situations that might explain the discrepancies found in the literature. We will show that the airborne route remains the main mode of transmission. Regarding preventive measures of prevention, while vaccination remains the cornerstone of the fight against viral outbreaks, we will remind the reader that wearing a mask is the main barrier measure and that the choice of type of mask depends on the risk situations. Finally, we believe that the recent pandemic should induce us in the future to modify our recommendations by adapting our measures in hospitals, not to the pathogen concerned, which is currently the case, but rather to the type of at-risk situation.
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Affiliation(s)
- Y Tandjaoui-Lambiotte
- Service de Pneumologie-Infectiologie, CH Saint Denis, 2 rue Dr. Delafontaine, 93200, France
| | - A Lomont
- Unité de Prévention du Risque Infectieux, Service de microbiologie clinique, GHU Paris Seine Saint-Denis, Université Sorbonne Paris Nord, France
| | - P Moenne-Locoz
- Unité de Prévention du Risque Infectieux, Service de microbiologie clinique, GHU Paris Seine Saint-Denis, Université Sorbonne Paris Nord, France
| | - D Seytre
- Unité de Prévention du Risque Infectieux, Service de microbiologie clinique, GHU Paris Seine Saint-Denis, Université Sorbonne Paris Nord, France
| | - J R Zahar
- Unité de Prévention du Risque Infectieux, Service de microbiologie clinique, GHU Paris Seine Saint-Denis, Université Sorbonne Paris Nord, France.
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Ward V, Wei J, Gordon W, Barnes E, Dunachie S, Jeffery K, Eyre D, O'Donnell AM. SARS-CoV-2 antibody responses post-vaccination in UK healthcare workers with pre-existing medical conditions: a cohort study. BMJ Open 2022; 12:e066766. [PMID: 36456004 PMCID: PMC9716410 DOI: 10.1136/bmjopen-2022-066766] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
OBJECTIVES To examine antibody responses after the second vaccination in healthcare workers (HCWs) with underlying health conditions. DESIGN Cohort study. SETTING Oxford University Hospitals in the United Kingdom. PARTICIPANTS Healthcare workers who had SARS-CoV-2 serological data available and received two SARS-CoV- 2 vaccinations. PRIMARY OUTCOME Peak SARS-CoV-2 anti-spike IgG responses after the second vaccination and associations with underlying health conditions and the estimated risk of severe COVID-19 using an occupational health risk assessment tool. METHODS We used univariable and multivariable linear regression models to investigate associations between antibody levels and demographics (age, sex, ethnicity), healthcare role, body mass index, underlying health conditions, vaccination status, prior infection and the Association of Local Authority Medical Advisors COVID-age risk score. RESULTS 1635 HCWs had anti-spike IgG measurements 14-84 days after second vaccination and data on any underlying health conditions. Only five HCWs (0.3%), all on immunosuppressive treatment, (including four organ transplant recipients), did not seroconvert after second vaccination. Antibody levels were independently lower with older age, diabetes, immunosuppression, respiratory disorders other than asthma and markedly so in organ transplant recipients. Levels were independently lower in ChAdOx1 versus BNT162b2 recipients and higher following previous infection. HCWs with 'very high' COVID-age risk scores had lower median antibody levels than those with 'low', 'medium' or 'high' risk scores; 4379 AU/mL, compared with 12 337 AU/mL, 9430 AU/mL and 10 524 AU/mL, respectively. CONCLUSIONS Two vaccine doses are effective in generating antibody responses among HCWs, including those with a high occupational risk. However, HCWs with underlying health conditions, especially diabetes, immunosuppression and organ transplant, had lower antibody levels, and vaccine response monitoring may be needed.
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Affiliation(s)
- Victoria Ward
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
| | - Jia Wei
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Big Data Institute, University of Oxford, Oxford, UK
| | - William Gordon
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
| | - Eleanor Barnes
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
| | - Susie Dunachie
- Nuffield Department of Medicine, University of Oxford, Oxford, UK
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
| | - Katie Jeffery
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
- Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - David Eyre
- Department of Medical Microbiology and Infectious Diseases, Oxford University Hospitals, Oxford, UK
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
| | - Anne-Marie O'Donnell
- Nuffield Department of Population Health, University of Oxford, Oxford, UK
- Occupational Health Department, Oxford Health NHS Foundation Trust, Oxford, UK
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Garlantezec R, Tadié E, Heslan C, Gary-Bobo P, Oumari S, Saade A, Sitruk A, Tattevin P, Thibault V, Paris C. SARS-CoV-2 seroprevalence and antibodies persistence among health care workers after the first COVID-19 wave in nine hospitals in Western France. Infect Dis Now 2022; 52:447-452. [PMID: 36108975 PMCID: PMC9467933 DOI: 10.1016/j.idnow.2022.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2022] [Revised: 07/05/2022] [Accepted: 09/06/2022] [Indexed: 11/15/2022]
Abstract
Objectives To estimate the SARS-CoV-2 IgG seroprevalence rate in healthcare workers (HCWs) from Western France after the first 2020 wave, its determinants and the kinetics of total SARS-CoV-2 antibodies. Patients and methods Overall, 9,453 HCWs responded to a self-questionnaire and underwent a lateral flow immunoassay to assess SARS-CoV-2 IgG presence. For 72 HCWs who tested positive, total anti-nucleocapsid antibodies were assessed at day 0, 30, and 90. Results SARS-CoV-2 IgG seroprevalence rate was 1.06 % [0.86 %–1.27 %]. Factors associated with IgG presence were gender, performing upper respiratory tract samples, contact with HCWs or household members diagnosed with COVID-19. Total antibodies decreased between day 0 and day 90, with anosmia or ageusia, and were higher in HCWs older than 50 years. Conclusion We reported a low prevalence rate of IgG and identified several risk factors associated with its presence and persistence of total antibodies. Additional studies are needed to confirm these observations.
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Affiliation(s)
- R Garlantezec
- CHU de Rennes, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France.
| | - E Tadié
- CHU de Rennes, F-35000 Rennes, France
| | - C Heslan
- CHU de Rennes, F-35000 Rennes, France
| | | | - S Oumari
- CHU de Rennes, F-35000 Rennes, France
| | - A Saade
- CHU de Rennes, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - A Sitruk
- CHU de Rennes, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - P Tattevin
- CHU de Rennes, Univ Rennes, INSERM U1230, IFR140, F-35033 Rennes, France
| | - V Thibault
- CHU de Rennes, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
| | - C Paris
- CHU de Rennes, Univ Rennes, Inserm, EHESP, Irset (Institut de recherche en santé, environnement et travail) - UMR_S 1085, F-35000 Rennes, France
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SARS-CoV-2 Exposures of Healthcare Workers from Primary Care, Long-Term Care Facilities and Hospitals: A Nationwide Matched Case-Control Study. Clin Microbiol Infect 2022; 28:1471-1476. [PMID: 35777605 PMCID: PMC9239704 DOI: 10.1016/j.cmi.2022.05.038] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Revised: 05/20/2022] [Accepted: 05/24/2022] [Indexed: 12/31/2022]
Abstract
OBJECTIVES This study assessed the roles of various exposures and personal protective equipment (PPE) use on healthcare workers'risk (HCWs) of COVID-19 working in primary care, long-term-care facilities or hospitals. METHODS We conducted a matched case-control (1:1) study (10 April-9 July 2021). Cases (HCWs with confirmed COVID-19) and controls (HCWs without any COVID-19-positive test or symptoms) were invited by email to complete an online questionnaire on their exposures and PPE use over the 10-day period preceding inclusion. Risk factors were analyzed using multivariable conditional logistic regression. RESULTS A total of 2076 cases and 2076 matched controls were included. The analysis retained exposure to an infected person outside work (adjusted odd ratio, 19.9 [95% confidence intervaI, 12.4-31.9]), an infected colleague (2.26 [1.53-3.33]) or COVID-19 patients (2.37 [1.66-3.40]), as independent predictors of COVID-19 in HCWs, while partial (0.30 [0.22-0.40]) or complete (0.19 [0.14-0.27]) immunization was protective. Eye protection (0.57 [0.37-0.87]) and wearing a gown (0.58 [0.34-0.97]) for COVID-19 patient care were protective, while wearing an apron slightly increased the risk of infection (1.47 [1.00-2.18]). Protection of N95 respirators and surgical facemasks did not differ. Compared to medical professions, being a nurse (3.79 [2.50-5.76]) or a nurse's aide (9.08 [5.30-15.5]) was associated with COVID-19. Results were consistent across all healthcare settings. CONCLUSIONS HCWs were more likely to get COVID-19 in their personal sphere than during occupational activities. Our results suggest that eye protection for HCWs during patient care should be actively promoted.
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