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Yang R, Sun S. Campaign Governance and Partnerships: Unraveling COVID-19 Vaccine Promotion Efforts in China's Neighborhoods. Risk Manag Healthc Policy 2023; 16:2915-2929. [PMID: 38164293 PMCID: PMC10758253 DOI: 10.2147/rmhp.s441874] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/15/2023] [Indexed: 01/03/2024] Open
Abstract
Background COVID-19 vaccine promotion helps counter vaccine hesitancy and raise vaccine acceptance. Therefore, the Chinese state created collaborative infrastructures of COVID-19 vaccine promotion programs to promote stakeholder engagement and unload the burden of policy practitioners. However, partnerships in COVID-19 vaccine promotion programs have been underrepresented. Methods To address this lacuna, we qualitatively explored how partnerships in the COVID-19 vaccine promotion campaign (CVPC) were organized in China's neighborhoods. Specifically, we recruited participants via personal networks, referrals from acquaintances, and snowballing approaches, and conducted the qualitative thematic analysis following interviews with 62 Chinese stakeholders. Results This study indicates that to promote partnerships in CVPCs, neighborhood managers formed leadership in CVPCs, expanded the collaborative network, trained Health Promotion Practitioners (HPPs), and coordinated with HPPs to shape partnership agreements, produced COVID-19 vaccine promotional materials and advertised COVID-19 vaccines via diverse media tools. Although coproduction of CVPCs to a certain extent promoted state-society interaction in neighborhoods and state responsiveness to public demands, partners' disagreements on strategies applied by states for promoting COVID-19 vaccines eroded partnerships in CVPCs. Conclusion To construct a robust partnership in CVPCs, depoliticizing CVPCs and creating shared values among stakeholders in CVPCs are expected. Our study will not only deepen global audiences' understanding of CVCPs in China but also offer potential neighborhood-level solutions for implementing local and global health promotion efforts.
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Affiliation(s)
- Ronghui Yang
- Department of Public Administration, College of Humanities, Donghua University, Shanghai, 200051, People’s Republic of China
| | - Sirui Sun
- Department of Public Administration, College of Humanities, Donghua University, Shanghai, 200051, People’s Republic of China
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Swanson NJ, Marinho P, Dziedzic A, Jedlicka A, Liu H, Fenstermacher K, Rothman R, Pekosz A. 2019-2020 H1N1 clade A5a.1 viruses have better in vitro fitness compared with the co-circulating A5a.2 clade. Sci Rep 2023; 13:10223. [PMID: 37353648 PMCID: PMC10290074 DOI: 10.1038/s41598-023-37122-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Accepted: 06/15/2023] [Indexed: 06/25/2023] Open
Abstract
Surveillance for emerging human influenza virus clades is important for identifying changes in viral fitness and assessing antigenic similarity to vaccine strains. While fitness and antigenic structure are both important aspects of virus success, they are distinct characteristics and do not always change in a complementary manner. The 2019-2020 Northern Hemisphere influenza season saw the emergence of two H1N1 clades: A5a.1 and A5a.2. While several studies indicated that A5a.2 showed similar or even increased antigenic drift compared with A5a.1, the A5a.1 clade was still the predominant circulating clade that season. Clinical isolates of representative viruses from these clades were collected in Baltimore, Maryland during the 2019-2020 season and multiple assays were performed to compare both antigenic drift and viral fitness between clades. Neutralization assays performed on serum from healthcare workers pre- and post-vaccination during the 2019-2020 season show a comparable drop in neutralizing titers against both A5a.1 and A5a.2 viruses compared with the vaccine strain, indicating that A5a.1 did not have antigenic advantages over A5a.2 that would explain its predominance in this population. Plaque assays were performed to investigate fitness differences, and the A5a.2 virus produced significantly smaller plaques compared with viruses from A5a.1 or the parental A5a clade. To assess viral replication, low MOI growth curves were performed on both MDCK-SIAT and primary differentiated human nasal epithelial cell cultures. In both cell cultures, A5a.2 yielded significantly reduced viral titers at multiple timepoints post-infection compared with A5a.1 or A5a. Receptor binding was then investigated through glycan array experiments which showed a reduction in receptor binding diversity for A5a.2, with fewer glycans bound and a higher percentage of total binding attributable to the top three highest bound glycans. Together these data indicate that the A5a.2 clade had a reduction in viral fitness, including reductions in receptor binding, that may have contributed to the limited prevalence observed after emergence.
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Affiliation(s)
- Nicholas J Swanson
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA
| | - Paula Marinho
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA
| | - Amanda Dziedzic
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA
| | - Anne Jedlicka
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA
| | - Hsuan Liu
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA
| | - Katherine Fenstermacher
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Richard Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, 615 North Wolfe Street, rm W2116, Baltimore, MD, 21205, USA.
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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3
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Harris JN, Mauro C, Andresen JA, Zimet GD, Rosenthal SL. COVID-19 vaccine uptake and attitudes towards mandates in a nationally representative U.S. sample. J Behav Med 2023; 46:25-39. [PMID: 35486335 PMCID: PMC9051757 DOI: 10.1007/s10865-022-00317-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 03/29/2022] [Indexed: 11/07/2022]
Abstract
Widespread uptake of COVID-19 vaccination is vital to curtailing the pandemic, yet rates remain suboptimal in the U.S. Vaccine mandates have previously been successful, but are controversial. An April 2021 survey of a nationally representative sample (N = 1208) examined vaccine uptake, attitudes, and sociodemographic characteristics. Sixty-seven percent were vaccine acceptors, 14% wait-and-see, and 19% non-acceptors. Compared to wait-and-see and non-acceptors, acceptors were more likely to have a household member over age 65, have received a flu shot, have positive COVID-19 vaccine attitudes, and view COVID-19 vaccination as beneficial. Mandate support was higher among respondents who were vaccine acceptors, had positive views about COVID-19 vaccines, believed in COVID-19 preventive strategies, perceived COVID-19 as severe, were liberal, resided in the Northeast, were non-White, and had incomes < $75,000. Public health campaigns should target attitudes that appear to drive hesitancy and prepare for varying mandate support based on demographics, COVID-19 vaccine attitudes, and the scope of the mandate.
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Affiliation(s)
- Julen N Harris
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, 622 West 168th St, 17th Fl Room 102A, New York, NY, 10032, USA
- NewYork-Presbyterian Hospital, New York, NY, USA
| | - Christine Mauro
- Department of Biostatistics at the Mailman School of Public Health at, Columbia University Irving Medical Center, New York, NY, USA
| | - Jane A Andresen
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, 622 West 168th St, 17th Fl Room 102A, New York, NY, 10032, USA
| | - Gregory D Zimet
- Division of Adolescent Medicine, Indiana University School of Medicine, Indianapolis, IN, USA
| | - Susan L Rosenthal
- Department of Pediatrics, Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, 622 West 168th St, 17th Fl Room 102A, New York, NY, 10032, USA.
- Department of Psychiatry at Vagelos College of Physicians and Surgeons, Columbia University Irving Medical Center, New York, NY, USA.
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4
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Swanson NJ, Marinho P, Dziedzic A, Jedlicka A, Liu H, Fenstermacher K, Rothman R, Pekosz A. 2019-20 H1N1 clade A5a.1 viruses have better in vitro replication compared with the co-circulating A5a.2 clade. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.26.530085. [PMID: 36865250 PMCID: PMC9980287 DOI: 10.1101/2023.02.26.530085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
Surveillance for emerging human influenza virus clades is important for identifying changes in viral fitness and assessing antigenic similarity to vaccine strains. While fitness and antigenic structure are both important aspects of virus success, they are distinct characteristics and do not always change in a complementary manner. The 2019-20 Northern Hemisphere influenza season saw the emergence of two H1N1 clades: A5a.1 and A5a.2. While several studies indicated that A5a.2 showed similar or even increased antigenic drift compared with A5a.1, the A5a.1 clade was still the predominant circulating clade that season. Clinical isolates of representative viruses from these clades were collected in Baltimore, Maryland during the 2019-20 season and multiple assays were performed to compare both antigenic drift and viral fitness between clades. Neutralization assays performed on serum from healthcare workers pre- and post-vaccination during the 2019-20 season show a comparable drop in neutralizing titers against both A5a.1 and A5a.2 viruses compared with the vaccine strain, indicating that A5a.1 did not have antigenic advantages over A5a.2 that would explain its predominance in this population. Plaque assays were performed to investigate fitness differences, and the A5a.2 virus produced significantly smaller plaques compared with viruses from A5a.1 or the parental A5a clade. To assess viral replication, low MOI growth curves were performed on both MDCK-SIAT and primary differentiated human nasal epithelial cell cultures. In both cell cultures, A5a.2 yielded significantly reduced viral titers at multiple timepoints post-infection compared with A5a.1 or A5a. Receptor binding was then investigated through glycan array experiments which showed a reduction in receptor binding diversity for A5a.2, with fewer glycans bound and a higher percentage of total binding attributable to the top three highest bound glycans. Together these data indicate that the A5a.2 clade had a reduction in viral fitness, including reductions in receptor binding, that may have contributed to the limited prevalence observed after emergence.
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Affiliation(s)
- Nicholas J Swanson
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Paula Marinho
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Amanda Dziedzic
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Anne Jedlicka
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Hsuan Liu
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
| | - Katherine Fenstermacher
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Richard Rothman
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, The Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, USA
- Department of Emergency Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA
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Zastawna B, Załuska R, Milewska A, Zdęba-Mozoła A, Ogonowska A, Kozłowski R, Owczarek A, Marczak M. Protective Vaccination Used by Doctors for Prevention of Infections. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4153. [PMID: 36901165 PMCID: PMC10001470 DOI: 10.3390/ijerph20054153] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 02/22/2023] [Accepted: 02/23/2023] [Indexed: 06/18/2023]
Abstract
Doctors, as with all healthcare workers, are a specific risk group due to a high probability of contact with contagious pathogens. An online survey was conducted among Polish doctors to establish their use of protective vaccination to decrease their personal risk of infection. The online survey was conducted using questions about medics' vaccination decisions and approaches. The results revealed that immunization against VPDs for most participants was not adequate based on recommendations or developments in vaccinology. To increase vaccination as a prophylactic method among doctors, especially those not involved in the immunization of patients, an educational campaign is demanded. As non-immunized medics are at risk themselves and are also a threat to the safety of patients, legal changes and the monitoring of vaccine acceptance and perception among medics are required.
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Affiliation(s)
- Beata Zastawna
- Department of Management and Logistics in Health Care, Medical University of Lodz, 90-131 Lodz, Poland
| | - Roman Załuska
- Department of Management and Logistics in Health Care, Medical University of Lodz, 90-131 Lodz, Poland
| | - Anna Milewska
- Department of Statistics and Medical Informatics, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Agnieszka Zdęba-Mozoła
- Department of Management and Logistics in Health Care, Medical University of Lodz, 90-131 Lodz, Poland
| | - Agnieszka Ogonowska
- Department of Management and Logistics in Health Care, Medical University of Lodz, 90-131 Lodz, Poland
| | - Remigiusz Kozłowski
- Center for Security Technologies in Logistics, Faculty of Management, University of Lodz, 90-237 Lodz, Poland
| | - Anna Owczarek
- Department of Management and Logistics in Health Care, Medical University of Lodz, 90-131 Lodz, Poland
| | - Michał Marczak
- Collegium of Management, WSB University in Warsaw, 03-204 Warszawa, Poland
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6
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Muacevic A, Adler JR. ChatGPT Output Regarding Compulsory Vaccination and COVID-19 Vaccine Conspiracy: A Descriptive Study at the Outset of a Paradigm Shift in Online Search for Information. Cureus 2023; 15:e35029. [PMID: 36819954 PMCID: PMC9931398 DOI: 10.7759/cureus.35029] [Citation(s) in RCA: 24] [Impact Index Per Article: 24.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/15/2023] [Indexed: 02/17/2023] Open
Abstract
BACKGROUND Being on the verge of a revolutionary approach to gathering information, ChatGPT (an artificial intelligence (AI)-based language model developed by OpenAI, and capable of producing human-like text) could be the prime motive of a paradigm shift on how humans will acquire information. Despite the concerns related to the use of such a promising tool in relation to the future of the quality of education, this technology will soon be incorporated into web search engines mandating the need to evaluate the output of such a tool. Previous studies showed that dependence on some sources of online information (e.g., social media platforms) was associated with higher rates of vaccination hesitancy. Therefore, the aim of the current study was to describe the output of ChatGPT regarding coronavirus disease 2019 (COVID-19) vaccine conspiracy beliefs. and compulsory vaccination. METHODS The current descriptive study was conducted on January 14, 2023 using the ChatGPT from OpenAI (OpenAI, L.L.C., San Francisco, CA, USA). The output was evaluated by two authors and the degree of agreement regarding the correctness, clarity, conciseness, and bias was evaluated using Cohen's kappa. RESULTS The ChatGPT responses were dismissive of conspiratorial ideas about severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) origins labeling it as non-credible and lacking scientific evidence. Additionally, ChatGPT responses were totally against COVID-19 vaccine conspiracy statements. Regarding compulsory vaccination, ChatGPT responses were neutral citing the following as advantages of this strategy: protecting public health, maintaining herd immunity, reducing the spread of disease, cost-effectiveness, and legal obligation, and on the other hand, it cited the following as disadvantages of compulsory vaccination: ethical and legal concerns, mistrust and resistance, logistical challenges, and limited resources and knowledge. CONCLUSIONS The current study showed that ChatGPT could be a source of information to challenge COVID-19 vaccine conspiracies. For compulsory vaccination, ChatGPT resonated with the divided opinion in the scientific community toward such a strategy; nevertheless, it detailed the pros and cons of this approach. As it currently stands, the judicious use of ChatGPT could be utilized as a user-friendly source of COVID-19 vaccine information that could challenge conspiracy ideas with clear, concise, and non-biased content. However, ChatGPT content cannot be used as an alternative to the original reliable sources of vaccine information (e.g., the World Health Organization [WHO] and the Centers for Disease Control and Prevention [CDC]).
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7
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Thaivalappil A, Young I, MacKay M, Pearl DL, Papadopoulos A. A qualitative study exploring healthcare providers’ and trainees’ barriers to COVID-19 and influenza vaccine uptake. Health Psychol Behav Med 2022; 10:695-712. [PMID: 35957955 PMCID: PMC9359157 DOI: 10.1080/21642850.2022.2106231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Background Vaccines are effective biological interventions which reduce health burdens and protect healthcare providers from vaccine-preventable diseases. However, there are concerns about varying levels of vaccination coverage of influenza and COVID-19 vaccines among those working in healthcare. The aim of this study was to identify barriers and facilitators to COVID-19 and influenza vaccinations among healthcare providers and trainees using the Theoretical Domains Framework (TDF). Methods Semi-structured interviews (n = 18) were carried out with healthcare providers and trainees in Canada. A thematic analysis approach was used to code interview transcripts and match findings to TDF domains and broader categories. Results Three overarching themes were generated from six TDF domains and three inductively generated categories: (1) making informed health decisions with an added responsibility to protect oneself and patients; (2) a pro-vaccine social network, widespread accessibility, and pursuing a sense of normalcy; and (3) seeking a more nuanced, respectful, and calculated approach to vaccine communication and policy implementation. Conclusion These findings help to identify factors associated with influenza and COVID-19 vaccine uptake among individuals in the healthcare field. Addressing these factors may improve healthcare provider sentiments surrounding vaccines, lead to better patient education, and increased uptake of vaccinations with the potential for seasonal booster doses.
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Affiliation(s)
| | - Ian Young
- School of Occupational and Public Health, Ryerson University, Toronto, Canada
| | - Melissa MacKay
- Department of Population Medicine, University of Guelph, Guelph, Canada
| | - David L. Pearl
- Department of Population Medicine, University of Guelph, Guelph, Canada
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Psychological Antecedents of Healthcare Workers towards Monkeypox Vaccination in Nigeria. Vaccines (Basel) 2022; 10:vaccines10122151. [PMID: 36560561 PMCID: PMC9783513 DOI: 10.3390/vaccines10122151] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 12/06/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022] Open
Abstract
The ongoing monkeypox (MPX) outbreak has been declared a public health emergency of international concern. People in close contact with active MPX cases, including healthcare workers (HCWs), are at higher risk of virus acquisition since the MPX virus can be transmitted by skin contact or respiratory secretions. In this study, we aimed to assess the psychological antecedents of MPX vaccination among Nigerian HCWs using the 5C scale. We used an anonymous online cross-sectional survey to recruit potential participants using snowball sampling. The questionnaire aimed to assess the geo/socioeconomic features and the 5C psychological antecedents of vaccine acceptance (confidence, complacency, constraints, calculation, and collective responsibility). A total of 389 responses were included, with a median age of 37 years (IQR: 28−48), 55.5% males, and 60.7% married participants. Among the studied Nigerian HCWs, only 31.1% showed confidence in MPX vaccination, 58.4% expressed complacency towards vaccination, 63.8% perceived constraints towards MPX vaccination, 27.2% calculated the benefits and risks of vaccination, and 39.2% agreed to receive MPX vaccination to protect others. The determinants of MPX vaccine confidence were being single (OR = 5.07, 95% CI: 1.26−20.34, p = 0.022), a higher education level (with pre-college/high school as a reference, professional/technical: OR = 4.12, 95% CI: 1.57−10.73, p = 0.004, undergraduate: OR = 2.94, 95% CI: 1.32−6.55, p = 0.008, and postgraduate degree (OR = 3.48, 95% CI: 1.51−8.04, p = 0.003), and absence of chronic disease (OR = 2.57, 95% CI: 1.27−5.22, p = 0.009). The significant complacency predictors were having a middle-income (OR = 0.53, 95% CI: 0.33−0.89, p = 0.008), having a bachelor’s degree (OR = 2.37, 95% CI: 1.10−5.11, p = 0.027), and knowledge of someone who died due to MPX (OR = 0.20, 95% CI: 0.05−0.93, p = 0.040). Income was associated with perceived vaccination constraints (OR = 0.62, 95% CI: 0.39−0.99, p = 0.046). Participants aged 46−60 years had decreased odds in the calculation domain (OR = 0.52, 95% CI: 0.27−0.98, p = 0.044). Middle-income and bachelor degree/postgraduate education significantly influenced the collective responsibility domain (OR = 2.10, 95% CI: 1.19−3.69, p = 0.010; OR = 4.17, 95% CI: 1.85−9.38, p < 0.001; and OR = 3.45, 95% CI: 1.50−7.90, p = 0.003, respectively). An investigation of the 5C pattern-based psychological antecedents of MPX vaccination in a sample of Nigerian HCWs revealed low levels of vaccine confidence and collective responsibility with high levels of constraints and complacency. These psychological factors are recommended to be considered in any efforts aiming to promote MPX vaccination needed in a country where MPX is endemic.
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The Role of Psychological Factors and Vaccine Conspiracy Beliefs in Influenza Vaccine Hesitancy and Uptake among Jordanian Healthcare Workers during the COVID-19 Pandemic. Vaccines (Basel) 2022; 10:vaccines10081355. [PMID: 36016243 PMCID: PMC9413675 DOI: 10.3390/vaccines10081355] [Citation(s) in RCA: 28] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 08/17/2022] [Accepted: 08/18/2022] [Indexed: 12/29/2022] Open
Abstract
Vaccination to prevent influenza virus infection and to lessen its severity is recommended among healthcare workers (HCWs). Health professionals have a higher risk of exposure to viruses and could transmit the influenza virus to vulnerable patients who are prone to severe disease and mortality. The aim of the current study was to evaluate the levels of influenza vaccine acceptance and uptake as well as its determinants, among Jordanian HCWs over the last influenza season of 2021/2022. This study was based on a self-administered electronic survey that was distributed in March 2022. Psychological determinants of influenza vaccine acceptance and vaccine conspiracy beliefs were assessed using the previously validated 5C scale questionnaire (confidence, complacency, constraints, calculation and collective responsibility) and the vaccine conspiracy beliefs scale. The study sample comprised a total of 1218 HCWs: nurses (n = 412, 33.8%), physicians (n = 367, 30.1%), medical technicians (n = 182, 14.9%), pharmacists (n = 161, 13.2%) and dentists (n = 87, 7.1%), among others. About two-thirds of the study sample expressed willingness to receive influenza vaccination if provided free of charge (n = 807, 66.3%), whereas less than one-third were willing to pay for the vaccine (n = 388, 31.9%). The self-reported uptake of the influenza vaccine in the last influenza season was 62.8%. The following factors were significantly associated with higher acceptance of influenza vaccination if provided freely, as opposed to vaccine hesitancy/rejection: male sex; physicians and dentists among HCW categories; higher confidence and collective responsibility; and lower complacency, constraints and calculation. Higher influenza vaccine uptake was significantly correlated with nurses and physicians among HCW categories, older age, a higher monthly income, higher confidence and collective responsibility, lower complacency and constraints and lower embrace of general vaccine conspiracy beliefs. The results of the current study can provide helpful clues to improve influenza vaccine coverage among HCWs in Jordan. Consequently, this can help to protect vulnerable patient groups and reserve valuable resources in healthcare settings. Psychological determinants appeared to be the most significant factors for vaccine acceptance and uptake, whereas the embrace of general vaccine conspiracy beliefs was associated with lower rates of influenza vaccine uptake, which should be considered in educational and interventional measures aiming to promote influenza vaccination.
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10
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Giannitrapani KF, Brown-Johnson C, Connell NB, Yano EM, Singer SJ, Giannitrapani SN, Thanassi W, Lorenz KA. Promising Strategies to Support COVID-19 Vaccination of Healthcare Personnel: Qualitative Insights from the VHA National Implementation. J Gen Intern Med 2022; 37:1737-1747. [PMID: 35260957 PMCID: PMC8902903 DOI: 10.1007/s11606-022-07439-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Accepted: 01/26/2022] [Indexed: 11/27/2022]
Abstract
BACKGROUND In August 2021, up to 30% of Americans were uncertain about taking the COVID-19 vaccine, including some healthcare personnel (HCP). OBJECTIVE Our objective was to identify barriers and facilitators of the Veterans Health Administration (VHA) HCP vaccination program. DESIGN We conducted key informant interviews with employee occupational health (EOH) providers, using snowball recruitment. PARTICIPANTS Participants included 43 VHA EOH providers representing 29 of VHA's regionally diverse healthcare systems. APPROACH Thematic analysis elucidated 5 key themes and specific strategies recommended by EOH. KEY RESULTS Implementation themes reflected logistics of distribution (supply), addressing any vaccine concerns or hesitancy (demand), and learning health system strategies/approaches for shared learnings. Specifically, themes included the following: (1) use interdisciplinary task forces to leverage diverse skillsets for vaccine implementation; (2) invest in processes and align resources with priorities, including creating detailed processes, addressing time trade-offs for personnel involved in vaccine clinics by suspending everything non-essential, designating process/authority to shift personnel where needed, and proactively involving leaders to support resource allocation/alignment; (3) expect and accommodate vaccine buy-in occurring over time: prepare for some HCP's slow buy-in, align buy-in facilitation with identities and motivation, and encourage word-of-mouth and hyper-local testimonials; (4) overcome misinformation with trustworthy communication: tailor communication to individuals and address COVID vaccines "in every encounter," leverage proactive institutional messaging to reinforce information, and invite bi-directional conversations about any vaccine concerns. A final overarching theme focused on learning health system needs and structures: (5) use existing and newly developed communication channels to foster shared learning across teams and sites. CONCLUSIONS Expecting deliberation allows systems to prepare for complex distribution logistics (supply) and make room for conversations that are trustworthy, bi-directional, and identity aligned (demand). Ideally, organizations provide time for conversations that address individual concerns, foster bi-directional shared decision-making, respect HCP beliefs and identities, and emphasize shared identities as healthcare providers.
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Affiliation(s)
- Karleen F Giannitrapani
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA.
- Division of Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, USA.
| | - Cati Brown-Johnson
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA
- Division of Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Elizabeth M Yano
- Center for the Study of Healthcare Innovation, Implementation and Policy, VA Greater Los Angeles Healthcare System, Los Angeles, CA, USA
- Department of Health Policy and Management, Fielding School of Public Health, University of California Los Angeles, Los Angeles, CA, USA
- Department of Medicine, Geffen School of Medicine, UCLA, Los Angeles, CA, USA
| | - Sara J Singer
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA
- Division of Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, USA
| | | | - Wendy Thanassi
- Division of Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, USA
- Occupational Health Service, VA Palo Alto Health Care System, Palo Alto, CA, USA
| | - Karl A Lorenz
- Center for Innovation to Implementation, VA Palo Alto Health Care System, Menlo Park, CA, USA
- Division of Primary Care and Population Health, Stanford University School of Medicine, Stanford, CA, USA
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Kuo H, Shapiro JR, Dhakal S, Morgan R, Fink AL, Liu H, Westerbeck JW, Sylvia KE, Park HS, Ursin RL, Shea P, Shaw-Saliba K, Fenstermacher K, Rothman R, Pekosz A, Klein SL. Sex-specific effects of age and body mass index on antibody responses to seasonal influenza vaccines in healthcare workers. Vaccine 2022; 40:1634-1642. [PMID: 33678455 PMCID: PMC8417149 DOI: 10.1016/j.vaccine.2021.02.047] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 02/15/2021] [Accepted: 02/19/2021] [Indexed: 12/15/2022]
Abstract
Healthcare institutions with mandatory influenza vaccination policies have over 90% vaccination rates among healthcare workers (HCWs) resulting in a population that has received the influenza vaccine in many, consecutive years. This study explored the impact of sex and other host factors in pre- and post-vaccination neutralizing antibody (nAb) titers and seroconversion against the H1N1 and H3N2 influenza A viruses (IAVs) among HCWs enrolled into a cross-sectional serosurvey during the annual Johns Hopkins Hospital employee vaccination campaign in the 2017-18 and 2018-19 seasons. The study enrolled 111 participants (male = 38, female = 73) in 2017-18 and 163 (male = 44, female = 119) in 2018-19. Serum samples were collected immediately prior to vaccination and approximately 28 days later and nAb titers to vaccine strains determined. An intersectional approach was used to disaggregate the combined effects of sex with age and body mass index (BMI) in the nAb response. Differences between the pre- or post-vaccination geometric mean nAb titers between male and female HCWs were not observed. Male HCWs were 2.86 times more likely to seroconvert compared to female HCWs in 2017-2018, but the same trend was not observed in the following year. When data were disaggregated by age and sex, older female HCWs had higher H1N1 pre- and post-vaccination nAb titers compared to male HCWs in the same age group for both vaccination campaign seasons. In both years, the decline in H3N2 pre-vaccination titers with increasing BMI was greater in female than male HCW. The sex-specific effects of age and BMI on nAb responses to seasonal influenza vaccines require greater consideration.
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Affiliation(s)
- Helen Kuo
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Janna R Shapiro
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Santosh Dhakal
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Rosemary Morgan
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Ashley L Fink
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Hsuan Liu
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Jason W Westerbeck
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Kristyn E Sylvia
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Han-Sol Park
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Rebecca L Ursin
- Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Patrick Shea
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States
| | - Kathryn Shaw-Saliba
- Department of Emergency Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Katherine Fenstermacher
- Department of Emergency Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Richard Rothman
- Department of Emergency Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Andrew Pekosz
- W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Department of Emergency Medicine, Johns Hopkins School of Medicine, Baltimore, MD, United States
| | - Sabra L Klein
- Department of International Health, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; W. Harry Feinstone Department of Molecular Microbiology and Immunology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States; Department of Biochemistry and Molecular Biology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, United States.
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12
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Chan CP, Lee SS, Wong NS. Adherence of nurses to annual seasonal influenza vaccination over a 5-year period. J Hosp Infect 2021; 112:6-15. [PMID: 33640372 DOI: 10.1016/j.jhin.2021.02.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2020] [Revised: 02/10/2021] [Accepted: 02/18/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Healthcare workers (HCWs) are at risk of influenza infection with associated nosocomial transmission. Sustained adherence to seasonal influenza vaccination uptake each year is important in epidemic control. AIM To assess the adherence of nurses to seasonal influenza vaccination over 5 years and its associated factors. METHODS A cross-sectional study was conducted among nurses after the winter influenza season in Hong Kong in March 2019. Based on influenza vaccine uptake rates in the 2014/15-2018/19 seasons, respondents were stratified into three groups: 'full adherence' (vaccine uptake in five seasons), 'partial adherence' (vaccine uptake in one to four seasons) and 'non-adherence' (no vaccine uptake). Stepwise multi-variable logistic regression was performed to determine the associations between adherence to annual influenza vaccination, respondents' characteristics and considerations for vaccination. FINDINGS Of 1306 nurses recruited, the majority were female (88%) with a median age of 36 years (interquartile range 30-46 years). The influenza vaccination uptake rate increased from 36% in the 2014/15 season to 47% in the 2018/19 season. After stratification, 39%, 40% and 21% of respondents were non-adherers, partial adherers and full adherers, respectively. Full adherence was significantly associated with female gender [adjusted odds ratio (aOR) 0.60], age ≥40 years (aOR 2.92), long-term care facility nurse (aOR 0.56), uptake during studentship (aOR 3.83), local prevalence of seasonal influenza (aOR 0.51) and expert opinion (aOR 4.04). CONCLUSIONS A limited proportion of nurses were fully adherent to seasonal influenza vaccination. Monitoring adherence, improving access to vaccines, and interventions targeting less-adherent HCWs are crucial.
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Affiliation(s)
- C P Chan
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - S S Lee
- Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong
| | - N S Wong
- Jockey Club School of Public Health and Primary Care, The Chinese University of Hong Kong, Shatin, Hong Kong; Stanley Ho Centre for Emerging Infectious Diseases, The Chinese University of Hong Kong, Shatin, Hong Kong.
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13
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Fragala MS, Goldberg ZN, Goldberg SE. Return to Work: Managing Employee Population Health During the COVID-19 Pandemic. Popul Health Manag 2021; 24:S3-S15. [PMID: 33347795 PMCID: PMC7875125 DOI: 10.1089/pop.2020.0261] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Coronavirus disease-2019 (COVID-19), caused by the severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2), has abruptly transformed the outlook of employer health benefits plans for 2020 and 2021. Containing the spread of the virus and facilitating care of those infected have quickly emerged as immediate priorities. Employers have adjusted health benefits coverage to make COVID-19 testing and treatment accessible and remove barriers to care in order to facilitate the containment of the disease. Employers also are introducing strategies focused on testing, surveillance, workplace modifications, and hygiene to keep workforces healthy and workplaces safe. This paper is intended to provide evidence-based perspectives for self-insured employers for managing population health during the COVID-19 pandemic. Such considerations include (1) return to work practices focused on mitigating the spread of COVID-19 through safety practices, testing and surveillance; and (2) anticipating the impact of COVID-19 on health benefits and costs (including adaptations in delivery of care, social and behavioral health needs, and managing interrupted care for chronic conditions).
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14
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Qalla-Widmer L, Héquet D, Troillet N, Petignat C, Balmelli C, Bassi C, Bellini C, Chave JP, Cometta A, Christin L, Clerc O, Daher O, Fuehrer U, Marchetti O, Merz L, Portillo V, Pralong G, Sandoz L, Senn L, Tâche F, Iten A. Nosocomial influenza in south-western Swiss hospitals during two seasonal epidemics: an observational study. J Hosp Infect 2021; 109:115-122. [PMID: 33422590 DOI: 10.1016/j.jhin.2020.12.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Revised: 11/24/2020] [Accepted: 12/13/2020] [Indexed: 10/22/2022]
Abstract
BACKGROUND In Switzerland each year, influenza leads to between 112,000 and 275,000 medical consultations. Data on nosocomial influenza infection are limited. AIM To describe nosocomial cases of seasonal influenza in south-western Switzerland. METHODS This study was conducted during two seasonal influenza epidemics from 2016 to 2018 in 27 acute care public hospitals in south-western Switzerland. During these two time-periods, every patient hospitalized for >72 h who was positively screened by reverse transcription-polymerase chain reaction or antigen detection for influenza was included in the survey. Characteristics of patients included age, sex, and comorbidities. Included patients were followed up until discharge or death. Complications and administration of antineuraminidases and/or antibiotics were registered. FINDINGS The median influenza vaccine coverage of healthcare workers was 40%. In all, 836 patients were included (98% with type A influenza virus in 2016-2017; 77% with type B virus in 2017-2018). Most patients (81%) had an unknown vaccine status. Overall, the incidence of nosocomial influenza was 0.5 per 100 admissions (0.35 per 1000 patient-days). The most frequent comorbidities were diabetes (20%), chronic respiratory diseases (19%), and malnutrition (17%). Fever (77%) and cough (66%) were the most frequent symptoms. Seventy-one percent of patients received antineuraminidases, 28% received antibiotics. Infectious complications such as pneumonia were reported in 9%. Overall, the all-cause mortality was 6%. CONCLUSION The occurrence of nosocomial influenza underlines the importance of vaccinating patients and healthcare workers, rapidly recognizing community- or hospital-acquired cases, and applying adequate additional measures to prevent dissemination, including the timely administration of antineuraminidases to avoid antibiotic use (and misuse).
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Affiliation(s)
- L Qalla-Widmer
- Cantonal Unit for Infection Control and Prevention, Public Health Service, Lausanne, Switzerland
| | - D Héquet
- Cantonal Unit for Infection Control and Prevention, Public Health Service, Lausanne, Switzerland.
| | - N Troillet
- Service of Infectious Diseases, Central Institute, Valais Hospital, Sion, Switzerland
| | - C Petignat
- Cantonal Unit for Infection Control and Prevention, Public Health Service, Lausanne, Switzerland
| | - C Balmelli
- Servizio di Prevenzione delle Infezioni e Medicina del Personale, Ente Ospedaliero Cantonale, Ticino, Switzerland
| | - C Bassi
- Prevention and Control of Infection, Hôpital du Jura Bernois, Moutier, Saint-Imier, Switzerland
| | - C Bellini
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - J-P Chave
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - A Cometta
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - L Christin
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - O Clerc
- Department of Internal Medicine and Infectious Diseases, Pourtalès Hospital, Neuchâtel, Switzerland
| | - O Daher
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - U Fuehrer
- Department of Internal Medicine and Infectious Diseases, Hôpital de Bienne, Switzerland
| | - O Marchetti
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - L Merz
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - V Portillo
- Prevention and Control of Infection, Hôpital du Jura, Switzerland
| | - G Pralong
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - L Sandoz
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - L Senn
- Service of Hospital Preventive Medicine, Lausanne University Hospital, Lausanne, Switzerland
| | - F Tâche
- Hospitals and Clinics of the Canton of Vaud, Switzerland
| | - A Iten
- Infection Control Program, Geneva University Hospitals, Geneva, Switzerland
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15
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Gerke S, Katznelson G, Reiss D, Shachar C. COVID-19 Antibody Testing as a Precondition for Employment: Ethical and Legal Considerations. THE JOURNAL OF LAW, MEDICINE & ETHICS : A JOURNAL OF THE AMERICAN SOCIETY OF LAW, MEDICINE & ETHICS 2021; 49:293-302. [PMID: 34924045 DOI: 10.1017/jme.2021.42] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Employers and governments are interested in the use of serological (antibody) testing to allow people to return to work before there is a vaccine for SARS-CoV-2. We articulate the preconditions needed for the implementation of antibody testing, including the role of the U.S. Food & Drug Administration.
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16
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Reiss DR. Vaccines Mandates and Religion: Where are We Headed with the Current Supreme Court? THE JOURNAL OF LAW, MEDICINE & ETHICS : A JOURNAL OF THE AMERICAN SOCIETY OF LAW, MEDICINE & ETHICS 2021; 49:552-563. [PMID: 35006054 DOI: 10.1017/jme.2021.79] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
This article argues that the Supreme Court should not require a religious exemption from vaccine mandates. For children, who cannot yet make autonomous religious decision, religious exemptions would allow parents to make a choice that puts the child at risk and makes the shared environment of the school unsafe - risking other people's children. For adults, there are still good reasons not to require a religious exemption, since vaccines mandates are adopted for public health reasons, not to target religion, are an area where free riding is a real risk, no religion actually prohibits vaccinating under a mandate, and policing religious exemptions is very difficult.
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17
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Flanagan P, Dowling M, Gethin G. Mandatory vaccination for seasonal influenza: what are nurses' views? ACTA ACUST UNITED AC 2020; 29:1186-1191. [PMID: 33180612 DOI: 10.12968/bjon.2020.29.20.1186] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Preventing seasonal influenza is a public health priority but, although the benefits of vaccinating healthcare workers (HCWs) are emphasised, seasonal influenza vaccine uptake rates remain low. Voluntary vaccination policies have been less successful in achieving high vaccine uptake when compared to mandatory policies and the persistently low vaccine uptake among HCWs has fuelled debate on whether mandatory vaccination programmes should be implemented in the interest of patient safety. AIM This study explored nurses' views on mandatory vaccination policy for seasonal influenza. METHODS A self-selected sample (n=35) of qualified nurses working in two large hospital sites in Ireland participated in five focus groups. Data were analysed using Braun and Clarke's framework. FINDINGS Two themes were identified: (1) mixed views on mandatory vaccination and (2) leave nurses to make their own choice on vaccination. CONCLUSION This study provides an understanding of nurses' views regarding mandatory vaccination policy for seasonal influenza and highlights that individual choice and autonomy are crucial for vaccine acceptance.
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Affiliation(s)
- Paula Flanagan
- Health Service Executive, Health Protection Surveillance Centre, Dublin, Republic of Ireland
| | - Maura Dowling
- Senior Lecturer, School of Nursing and Midwifery, National University of Ireland, Galway, Republic of Ireland
| | - Georgina Gethin
- Senior Lecturer, School of Nursing and Midwifery, National University of Ireland, Galway, Adjunct Associate Professor School of Nursing, Monash University, Australia, and Director, Alliance for Research and Innovation in Wounds, National University of Ireland, Galway, Republic of Ireland
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18
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Durovic A, Widmer AF, Dangel M, Ulrich A, Battegay M, Tschudin-Sutter S. Low rates of influenza vaccination uptake among healthcare workers: Distinguishing barriers between occupational groups. Am J Infect Control 2020; 48:1139-1143. [PMID: 32199740 DOI: 10.1016/j.ajic.2020.02.004] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2019] [Revised: 02/08/2020] [Accepted: 02/11/2020] [Indexed: 12/11/2022]
Abstract
BACKGROUND To gain further insights into health care workers (HCWs) attitudes toward influenza vaccination to guide future interventions to increase vaccination rates. METHODS A standardized anonymous questionnaire was sent to all employees of the University Hospital Basel, Switzerland following the influenza season 2013/2014. We collected information regarding HCW's demographics, experiences with flu vaccinations, and reasons for nonvaccination. RESULTS Vaccination rates ranged from 14.7% to 31% from 2007 to 2019. A total of 1,454 HCW participated in the survey, of which 62% reported being vaccinated. HCW not vaccinated were more commonly female and differed by occupational group and department. The main reasons for nonvaccination were fear of short-term adverse reactions, followed by assessing the evidence regarding vaccination-benefits as insufficient and fears of violation of the right to self-determination. Fear of long-term sequela and violation of the right of self-determination differed between the 4 professional groups, both being most commonly indicated by nurses and at least indicated by physicians. CONCLUSIONS This study provides some insight into differences regarding barriers to vaccination between different occupational groups, which might not have been adequately addressed so far. Policy makers should consider such differences when designing campaigns to raise acceptance of influenza vaccine among HCWs.
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19
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Policy statement from the Society for Healthcare Epidemiology of America (SHEA): Only medical contraindications should be accepted as a reason for not receiving all routine immunizations as recommended by the Centers for Disease Control and Prevention. Infect Control Hosp Epidemiol 2020; 42:1-5. [PMID: 32938509 DOI: 10.1017/ice.2020.342] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
SHEA endorses adhering to the recommendations by the CDC and ACIP for immunizations of all children and adults. All persons providing clinical care should be familiar with these recommendations and should routinely assess immunization compliance of their patients and strongly recommend all routine immunizations to patients. All healthcare personnel (HCP) should be immunized against vaccine-preventable diseases as recommended by the CDC/ACIP (unless immunity is demonstrated by another recommended method). SHEA endorses the policy that immunization should be a condition of employment or functioning (students, contract workers, volunteers, etc) at a healthcare facility. Only recognized medical contraindications should be accepted for not receiving recommended immunizations.
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20
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Shah SI, Brumberg HL, La Gamma EF. Applying lessons from vaccination hesitancy to address birth dose Vitamin K refusal: Where has the trust gone? Semin Perinatol 2020; 44:151242. [PMID: 32291097 DOI: 10.1016/j.semperi.2020.151242] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Refusal of intramuscular Vitamin K at birth is an emerging public health issue resulting in increased rates of intracranial bleeding. Parents who refuse this intervention bear epidemiologic resemblance to vaccine-refusing parents, are geographically clustered and share a mistrust of public health interventions. We review the prevalence of Vitamin K refusal and discuss individual and societal recommendations that may reduce Vitamin K refusal, adapted from vaccine hesitancy literature. We note the prevalence of misinformation on social media as a contributor to refusal and explore how changes in healthcare practices may influence growing physician mistrust. We propose solutions to the issue including state-based mandates and a pervasive social media strategy to combat misinformation as a contributor to Vitamin K refusal.
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Affiliation(s)
- Shetal I Shah
- Division of Newborn Medicine, Department of Pediatrics, New York Medical College, Regional NICU at Maria Fareri Children's Hospital at Westchester Medical Center, 100 Woods Road, Valhalla, NY 10595, United States.
| | - Heather L Brumberg
- Division of Newborn Medicine, Department of Pediatrics, New York Medical College, Regional NICU at Maria Fareri Children's Hospital at Westchester Medical Center, 100 Woods Road, Valhalla, NY 10595, United States
| | - Edmund F La Gamma
- Division of Newborn Medicine, Department of Pediatrics, New York Medical College, Regional NICU at Maria Fareri Children's Hospital at Westchester Medical Center, 100 Woods Road, Valhalla, NY 10595, United States
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21
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Management guidelines for pregnant health care workers exposed to infectious dermatoses. Int J Womens Dermatol 2020; 6:142-151. [PMID: 32313827 PMCID: PMC7165119 DOI: 10.1016/j.ijwd.2020.04.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 04/14/2020] [Accepted: 04/14/2020] [Indexed: 01/08/2023] Open
Abstract
Exanthematous diseases are frequently of infectious origin, posing risks, especially for pregnant health care workers (HCWs) who treat them. The shift from cell-mediated (Th1 cytokine profile) to humoral (Th2 cytokine profile) immunity during pregnancy can influence the mother’s susceptibility to infection and lead to complications for both mother and fetus. The potential for vertical transmission must be considered when evaluating the risks for pregnant HCWs treating infected patients because fetal infection can often have devastating consequences. Given the high proportion of women of childbearing age among HCWs, the pregnancy-related risks of exposure to infectious diseases are an important topic in both patient care and occupational health. Contagious patients with cutaneous manifestations often present to dermatology or pediatric clinics, where female providers are particularly prevalent; a growing number of these physicians are female. Unfortunately, the risks of infection for pregnant HCWs are not well defined. To our knowledge, there is limited guidance on safe practices for pregnant HCWs who encounter infectious dermatologic diseases. In this article, we review several infectious exanthems, their transmissibility to pregnant women, the likelihood of vertical transmission, and the potential consequences of infection for the mother and fetus. Additionally, we discuss recommendations with respect to avoidance, contact, and respiratory precautions, as well as the need for treatment after exposure.
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22
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Costantino C, Casuccio A, Caracci F, Bono S, Calamusa G, Ventura G, Maida CM, Vitale F, Restivo V. Impact of Communicative and Informative Strategies on Influenza Vaccination Adherence and Absenteeism from Work of Health Care Professionals Working at the University Hospital of Palermo, Italy: A Quasi-Experimental Field Trial on Twelve Influenza Seasons. Vaccines (Basel) 2019; 8:vaccines8010005. [PMID: 31878271 PMCID: PMC7158659 DOI: 10.3390/vaccines8010005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2019] [Revised: 12/20/2019] [Accepted: 12/22/2019] [Indexed: 11/26/2022] Open
Abstract
Every year, about 20% of health care workers (HCWs) acquire influenza, continuing to work and encouraging virus spreading. Influenza vaccination coverage rates and absenteeism from work among HCWs of the University Hospital (UH) of Palermo were analyzed before and after the implementation of several initiatives in order to increase HCWs’ awareness about influenza vaccination. Vaccines administration within hospital units, dedicated web pages on social media and on the UH of Palermo institutional web site, and mandatory compilation of a dissent form for those HCWs who refused vaccination were carried out during the last four influenza seasons. After the introduction of these strategies, influenza vaccination coverage went up from 5.2% (2014/2015 season) to 37.2% (2018/2019 season) (p < 0.001), and mean age of vaccinated HCWs significantly decreased from 48.1 years (95% CI: 45.7–50.5) to 35.9 years (95% CI: 35.0–36.8). A reduction of working days lost due to acute sickness among HCWs of the UH of Palermo was observed. Fear of adverse reactions and not considering themselves as a high-risk group for contracting influenza were the main reasons reported by HCWs that refused vaccination. Strategies undertaken at the UH of Palermo allowed a significant increase in vaccination adherence and a significant reduction of absenteeism from work.
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23
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Attinsounon CA, Cordonnier C, Pulcini C, Di-Patrizio P, Thilly N, May T. Factors associated with influenza vaccination of general medicine interns in Nancy, France, in 2017. Eur J Clin Microbiol Infect Dis 2019; 38:2267-2273. [PMID: 31410622 DOI: 10.1007/s10096-019-03669-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Accepted: 08/05/2019] [Indexed: 10/26/2022]
Abstract
Winter flu is an epidemic infectious disease which sometimes causes serious complications in vulnerable people treated in general practice. Currently, the most effective means of prevention is influenza vaccination, which is recommended for healthcare professionals, including general medicine interns. The target of 75% coverage set by WHO for healthcare professional is rarely reached. Our survey provides an assessment of reported influenza vaccination of general medicine interns (GMI) and evaluates factors influencing their vaccination status. A cross-sectional survey was conducted from 27 September to 2 November 2017 in the Faculty of Medicine at the University of Lorraine in France. An anonymous self-administered questionnaire was distributed electronically (SurveyMonkey software) to all GMI. It collected data on their vaccination status and on levers and barriers to influenza vaccination. The data were analysed using SAS 9.4 software. Multivariate analysis helped identify factors associated with their influenza vaccination status. Of the 595 GMI invited, 269 participated in the survey, with a response rate of 45.2%. During the 2015, 2016, and 2017 winters, overall self-declared vaccine coverage was 37.9, 49.4, and 56.5%, respectively. Being at the end of training (p = 0.008, OR = 3.2), the presence of a mobile vaccination team (p = 0.019, OR = 3.1), and recommending vaccination to one's relatives and friends (p < 0.0001, OR = 5.4) were the three factors independently associated with influenza vaccination. The two main reasons which had a strong influence on non-vaccination were forgetting to do so (30.5%) and lack of time (24.8%). Influenza vaccination coverage of GMI in Nancy falls well short of WHO targets. Vaccination campaigns and facilitated access to vaccination at study and work placement locations should be considered.
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Affiliation(s)
- Cossi Angelo Attinsounon
- Faculté de Médecine, CHUD-Borgou, Unité d'Enseignement et de Recherche en Maladies Infectieuses et Tropicales, Université de Parakou, 03 BP 112, Parakou, Benin. .,CHRU-Nancy, Service des Maladies Infectieuses et Tropicales, Université de Lorraine, 54000, Nancy, France.
| | - Clémence Cordonnier
- Département de Médecine Générale, Université de Lorraine, 54000, Nancy, France
| | - Céline Pulcini
- CHRU-Nancy, Service des Maladies Infectieuses et Tropicales, Université de Lorraine, 54000, Nancy, France.,APEMAC, Université de Lorraine, F-54000, Nancy, France
| | - Paolo Di-Patrizio
- Département de Médecine Générale, Université de Lorraine, 54000, Nancy, France
| | - Nathalie Thilly
- APEMAC, Université de Lorraine, F-54000, Nancy, France.,CHRU-Nancy, Plateforme d'Aide à la Recherche Clinique, Université de Lorraine, F-54000, Nancy, France
| | - Thierry May
- CHRU-Nancy, Service des Maladies Infectieuses et Tropicales, Université de Lorraine, 54000, Nancy, France.,APEMAC, Université de Lorraine, F-54000, Nancy, France
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24
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Mandatory policies for influenza vaccination: Views of managers and healthcare workers in England. Vaccine 2019; 37:69-75. [PMID: 30470641 DOI: 10.1016/j.vaccine.2018.11.033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/08/2018] [Accepted: 11/13/2018] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Mandatory policies have the potential to increase uptake of influenza ('flu') vaccination among healthcare workers (HCWs), but concerns have been expressed about their acceptability and effectiveness. We explored views on three mandatory policies (declination forms, face masks or reduced patient contact, and mandatory vaccination) among both HCWs and flu vaccination programme managers in the National Health Service (NHS) in England. METHOD A mixed method approach was employed. An online cross-sectional survey was conducted with staff responsible for implementing influenza campaigns in NHS trusts (healthcare organisations) in England (n = 72 trusts). The survey measured perceived effectiveness of the three mandatory policies and perceived support for them among HCWs. Qualitative interviews were conducted in four trusts, with influenza campaign managers (n = 24) and with HCWs who had the opportunity to receive the influenza vaccination (n = 32). Interviews explored respondents' views of the three strategies and were analysed thematically using QSR NVivo 11 All data were collected shortly after the 2016/2017 influenza season. RESULTS In the survey, views varied on the effectiveness of the three policies and none of the interventions were thought to be strongly supported by HCWs, with particularly low levels of support perceived for mandatory vaccination and for face masks or reduced patient contact. The qualitative interviews revealed substantial concerns around the practicability and enforceability of mandatory policies and the potential discriminatory effect on HCWs who made a principled decision or had medical reasons for exemption. Additional doubts were also expressed regarding the effectiveness of face masks and their potential to worry patients, and the ethics of compelling staff to accept medical intervention. DISCUSSION Mandatory vaccination and face masks would not be strongly supported if introduced in the UK. If declination forms are adopted, they should be used in a constructive intelligence-gathering manner which avoids stigmatising HCWs.
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Shpagina LA, Kotova OS, Shpagin IS, Loktin EM, Rukavitsyna AA, Kuznetsova GV, Kamneva NV, Laletina MA. Efficacy of 13-valent pneumococcal conjugate vaccine in healthcare workers. TERAPEVT ARKH 2018. [DOI: 10.26442/terarkh201890114-61] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Aim. To establish the efficacy of 13-valent pneumococcal conjugate vaccine (PCV13) for healthcare workers protection from occupational acquired infection and impact of healthcare staff vaccination on the risk of transmission to patients. Materials and methods. Healthcare personnel (n=157 of whom 105 critical care department staff) and 1770 patients of that critical care department observed. Healthcare workers received PCV13. Infections caused by Str. pneumoniae, respiratory infections regardless of etiology, work absenteeism in healthcare workers during 12 month before and after vaccination assessed. In the same time monitoring of hospital-acquired infections in patients of critical care department performed. Statistical analysis was done using SPSS 24, relationships were assessed by rate ratio, Cox regression, logistic regression and Kaplan-Meier estimator. Results. Healthcare workers' vaccine coverage in critical care department was 97.2%. In healthcare personnel the rate of all pneumococcal infections, asymptomatic carriage of Str. pneumoniae and respiratory pneumococcal infections were decreased after vaccination by 2.1, 2.2 and 2.1 times accordingly. The rate of respiratory infections regardless of etiology was decreased by 30%, р
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Reiss DR, Dubal VB. Influenza Mandates and Religious Accommodation: Avoiding Legal Pitfalls. THE JOURNAL OF LAW, MEDICINE & ETHICS : A JOURNAL OF THE AMERICAN SOCIETY OF LAW, MEDICINE & ETHICS 2018; 46:756-762. [PMID: 30336078 DOI: 10.1177/1073110518804237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Influenza mandates in health care institutions are recommended by professional associations as an effective way to prevent the contraction of influenza by patients from health care workers. Health care institutions with such mandates must operate within civil rights frameworks. A recent set of cases against health care institutions with influenza mandates reveals the liabilities posed by federal law that protects employees from religious discrimination. This article examines this legal framework and draws important lessons from this litigation for health care institutions. We argue counterintuitively that providing religious exemptions from influenza mandates may expose health care institutions to more liability than not providing a formal exemption.
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Affiliation(s)
- Dorit Rubinstein Reiss
- Dorit Rubinstein Reiss, LL.B., Ph.D., is a Professor of Law at the University of California, Hastings College of the Law who specializes in law and policy related to vaccines. V.B. Dubal, J.D., Ph.D., is an Associate Professor of Law at the University of California, Hastings College of the Law who specializes in employment law and employment discrimination, and researches the intersection of work law and social change
| | - V B Dubal
- Dorit Rubinstein Reiss, LL.B., Ph.D., is a Professor of Law at the University of California, Hastings College of the Law who specializes in law and policy related to vaccines. V.B. Dubal, J.D., Ph.D., is an Associate Professor of Law at the University of California, Hastings College of the Law who specializes in employment law and employment discrimination, and researches the intersection of work law and social change
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Healthcare personnel vaccination policies in michigan long-term care facilities. Infect Control Hosp Epidemiol 2018; 39:1003-1005. [DOI: 10.1017/ice.2018.110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
AbstractOf the 461 licensed long-term care facilities (LTCFs) in Michigan, 129 responded to the first survey of LTCF healthcare personnel (HCP) immunization policies, coverage estimates, and perceived barriers to vaccination. Survey results suggest opportunities to improve HCP vaccination through polices, education, barrier removal, and HCP immunity status tracking in licensed LTCFs in Michigan.
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Greene MT, Fowler KE, Ratz D, Krein SL, Bradley SF, Saint S. Changes in Influenza Vaccination Requirements for Health Care Personnel in US Hospitals. JAMA Netw Open 2018; 1:e180143. [PMID: 30646060 PMCID: PMC6324418 DOI: 10.1001/jamanetworkopen.2018.0143] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
IMPORTANCE Annual influenza vaccinations are currently recommended for all health care personnel (HCP) to limit the spread of influenza to those at high risk of developing serious complications from the virus. Vaccination coverage has been shown to be significantly greater among employers requiring and encouraging HCP to receive the annual influenza vaccination. OBJECTIVES To compare the proportion of respondent hospitals requiring HCP to receive annual influenza vaccination between 2013 and 2017 and to assess the degree to which these proportions differed between Veterans Affairs (VA) and non-VA hospitals. DESIGN, SETTING, AND PARTICIPANTS This national survey study included responses from 1062 infection preventionists between 2013 and 2017 from nationally representative samples of all VA and non-VA hospitals in the United States. Data analysis was conducted from November 17, 2017, to March 26, 2018. MAIN OUTCOMES AND MEASURES Survey response indicating hospital requirement for annual influenza vaccination of HCP. RESULTS The overall response rate for the 2013 survey was 69.3% (non-VA, 70.6% [403 of 571]; VA, 63.5% [80 of 126]) and in 2017 was 59.1% (non-VA, 59.1% [530 of 897]; VA, 58.9% [73 of 124]). Among all responding hospitals, mandatory influenza vaccination requirements for HCP increased from 37.1% in 2013 to 61.4% in 2017 (difference, 24.3%; 95% CI, 18.4%-30.2%; P < .001). This change was driven by non-VA hospitals, as requirement policies increased from 44.3% (171 of 386) in 2013 to 69.4% (365 of 526) in 2017 (difference, 25.1%; 95% CI, 18.8%-31.4%; P < .001). Conversely, there was no significant change during this period in the proportion of VA hospitals that required influenza vaccinations for HCP (1.3% [1 of 77] to 4.1% [3 of 73]; difference, 2.8%; 95% CI, -2.4% to 8.0%; P = .29). CONCLUSIONS AND RELEVANCE Despite a substantial increase in mandates among non-VA hospitals, we found that many non-VA hospitals and nearly all VA hospitals are still not currently mandating influenza vaccinations for HCP. In addition to implementing other well-described strategies to increase vaccination rates, health care organizations should consider mandating influenza vaccinations while appropriately weighing and managing the moral, ethical, and legal implications.
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Affiliation(s)
- M. Todd Greene
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Patient Safety Enhancement Program, Veterans Affairs Ann Arbor Healthcare System/University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Karen E. Fowler
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Patient Safety Enhancement Program, Veterans Affairs Ann Arbor Healthcare System/University of Michigan, Ann Arbor
| | - David Ratz
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Patient Safety Enhancement Program, Veterans Affairs Ann Arbor Healthcare System/University of Michigan, Ann Arbor
| | - Sarah L. Krein
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Patient Safety Enhancement Program, Veterans Affairs Ann Arbor Healthcare System/University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Suzanne F. Bradley
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
| | - Sanjay Saint
- Veterans Affairs Ann Arbor Healthcare System, Ann Arbor, Michigan
- Patient Safety Enhancement Program, Veterans Affairs Ann Arbor Healthcare System/University of Michigan, Ann Arbor
- Department of Internal Medicine, University of Michigan Medical School, Ann Arbor
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Protecting Healthcare Personnel in Outpatient Settings: The Influence of Mandatory Versus Nonmandatory Influenza Vaccination Policies on Workplace Absenteeism During Multiple Respiratory Virus Seasons. Infect Control Hosp Epidemiol 2018. [PMID: 29514719 DOI: 10.1017/ice.2018.9] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
OBJECTIVE To determine the effect of mandatory and nonmandatory influenza vaccination policies on vaccination rates and symptomatic absenteeism among healthcare personnel (HCP). DESIGN Retrospective observational cohort study. SETTING This study took place at 3 university medical centers with mandatory influenza vaccination policies and 4 Veterans Affairs (VA) healthcare systems with nonmandatory influenza vaccination policies. PARTICIPANTS The study included 2,304 outpatient HCP at mandatory vaccination sites and 1,759 outpatient HCP at nonmandatory vaccination sites. METHODS To determine the incidence and duration of absenteeism in outpatient settings, HCP participating in the Respiratory Protection Effectiveness Clinical Trial at both mandatory and nonmandatory vaccination sites over 3 viral respiratory illness (VRI) seasons (2012-2015) reported their influenza vaccination status and symptomatic days absent from work weekly throughout a 12-week period during the peak VRI season each year. The adjusted effects of vaccination and other modulating factors on absenteeism rates were estimated using multivariable regression models. RESULTS The proportion of participants who received influenza vaccination was lower each year at nonmandatory than at mandatory vaccination sites (odds ratio [OR], 0.09; 95% confidence interval [CI], 0.07-0.11). Among HCP who reported at least 1 sick day, vaccinated HCP had lower symptomatic days absent compared to unvaccinated HCP (OR for 2012-2013 and 2013-2014, 0.82; 95% CI, 0.72-0.93; OR for 2014-2015, 0.81; 95% CI, 0.69-0.95). CONCLUSIONS These data suggest that mandatory HCP influenza vaccination policies increase influenza vaccination rates and that HCP symptomatic absenteeism diminishes as rates of influenza vaccination increase. These findings should be considered in formulating HCP influenza vaccination policies. Infect Control Hosp Epidemiol 2018;39:452-461.
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