1
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Huang L, Hu W, Jiang Y, Hong W. Association between friends' hesitancy and personal COVID-19 vaccine hesitancy among Chinese medical staff. Hum Vaccin Immunother 2024; 20:2344290. [PMID: 38682698 PMCID: PMC11078117 DOI: 10.1080/21645515.2024.2344290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2023] [Accepted: 04/15/2024] [Indexed: 05/01/2024] Open
Abstract
COVID-19 vaccine hesitancy remains problematic among healthcare workers. Social network influences may shape vaccine decision-making, but few studies have examined this in this critical workforce. We assessed the relationship between friends' COVID-19 vaccination attitudes and personal hesitancy among Chinese healthcare personnel. In December 2022-January 2023, a cross-sectional online survey was conducted at a tertiary hospital in China using WeChat. Of the 1832 healthcare personnel who were invited to answer the structured questionnaire, 613 (33.5%) samples had valid data for data analysis. Logistic regression examined the association between friends' hesitancy and participants' own hesitancy, adjusting for confounders. Of 613 healthcare workers included, 266 (43.4%) were hesitant. Those with hesitant friends had 6.34 times higher adjusted odds of hesitating themselves versus those without hesitant friends (95% CI 2.97-13.52). Strong associations persisted across subgroups. Chinese healthcare workers' COVID-19 vaccination hesitancy was highly influenced by perceived friends' attitudes. Fostering pro-vaccine social norms through trusted peer networks could help promote vaccine acceptance in this critical workforce.
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Affiliation(s)
- Lili Huang
- Department of Emergency, Huangyan Hospital, Wenzhou Medical University, Taizhou, Zhejiang, China
| | - Weiwei Hu
- Department of General Surgery, Taizhou First People’s Hospital, Taizhou, Zhejiang, China
| | - Yanhong Jiang
- Department of Outpatient, Taizhou First People’s Hospital, Taizhou, Zhejiang, China
| | - Weiwen Hong
- Department of Anus & Intestine Surgery, Taizhou First People’s Hospital, Taizhou, Zhejiang, China
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2
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Cotfas LA, Crăciun L, Delcea C, Florescu MS, Kovacs ER, Molănescu AG, Orzan M. Unveiling Vaccine Hesitancy on Twitter: Analyzing Trends and Reasons during the Emergence of COVID-19 Delta and Omicron Variants. Vaccines (Basel) 2023; 11:1381. [PMID: 37631949 PMCID: PMC10458131 DOI: 10.3390/vaccines11081381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2023] [Revised: 08/15/2023] [Accepted: 08/17/2023] [Indexed: 08/29/2023] Open
Abstract
Given the high amount of information available on social media, the paper explores the degree of vaccine hesitancy expressed in English tweets posted worldwide during two different one-month periods of time following the announcement regarding the discovery of new and highly contagious variants of COVID-19-Delta and Omicron. A total of 5,305,802 COVID-19 vaccine-related tweets have been extracted and analyzed using a transformer-based language model in order to detect tweets expressing vaccine hesitancy. The reasons behind vaccine hesitancy have been analyzed using a Latent Dirichlet Allocation approach. A comparison in terms of number of tweets and discussion topics is provided between the considered periods with the purpose of observing the differences both in quantity of tweets and the discussed discussion topics. Based on the extracted data, an increase in the proportion of hesitant tweets has been observed, from 4.31% during the period in which the Delta variant occurred to 11.22% in the Omicron case, accompanied by a diminishing in the number of reasons for not taking the vaccine, which calls into question the efficiency of the vaccination information campaigns. Considering the proposed approach, proper real-time monitoring can be conducted to better observe the evolution of the hesitant tweets and the COVID-19 vaccine hesitation reasons, allowing the decision-makers to conduct more appropriate information campaigns that better address the COVID-19 vaccine hesitancy.
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Affiliation(s)
- Liviu-Adrian Cotfas
- Department of Economic Informatics and Cybernetics, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Liliana Crăciun
- Department of Economics and Economic Policies, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Camelia Delcea
- Department of Economic Informatics and Cybernetics, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Margareta Stela Florescu
- Department of Administration and Public Management, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Erik-Robert Kovacs
- Department of Economic Informatics and Cybernetics, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Anca Gabriela Molănescu
- Department of Economics and Economic Policies, Bucharest University of Economic Studies, 010374 Bucharest, Romania
| | - Mihai Orzan
- Department of Marketing, Bucharest University of Economic Studies, 010374 Bucharest, Romania
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3
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Novilla MLB, Goates MC, Redelfs AH, Quenzer M, Novilla LKB, Leffler T, Holt CA, Doria RB, Dang MT, Hewitt M, Lind E, Prickett E, Aldridge K. Why Parents Say No to Having Their Children Vaccinated against Measles: A Systematic Review of the Social Determinants of Parental Perceptions on MMR Vaccine Hesitancy. Vaccines (Basel) 2023; 11:vaccines11050926. [PMID: 37243030 DOI: 10.3390/vaccines11050926] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 04/20/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Abstract
Ongoing outbreaks of measles threaten its elimination status in the United States. Its resurgence points to lower parental vaccine confidence and local pockets of unvaccinated and undervaccinated individuals. The geographic clustering of hesitancy to MMR indicates the presence of social drivers that shape parental perceptions and decisions on immunization. Through a qualitative systematic review of published literature (n = 115 articles; 7 databases), we determined major themes regarding parental reasons for MMR vaccine hesitancy, social context of MMR vaccine hesitancy, and trustworthy vaccine information sources. Fear of autism was the most cited reason for MMR hesitancy. The social drivers of vaccine hesitancy included primary care/healthcare, education, economy, and government/policy factors. Social factors, such as income and education, exerted a bidirectional influence, which facilitated or hindered vaccine compliance depending on how the social determinant was experienced. Fear of autism was the most cited reason for MMR hesitancy. Vaccine hesitancy to MMR and other childhood vaccines clustered in middle- to high-income areas among mothers with a college-level education or higher who preferred internet/social media narratives over physician-based vaccine information. They had low parental trust, low perceived disease susceptibility, and were skeptical of vaccine safety and benefits. Combating MMR vaccine misinformation and hesitancy requires intersectoral and multifaceted approaches at various socioecological levels to address the social drivers of vaccine behavior.
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Affiliation(s)
| | - Michael C Goates
- Harold B. Lee Library, Brigham Young University, Provo, UT 84602, USA
| | - Alisha H Redelfs
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Mallory Quenzer
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | | | - Tyler Leffler
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Christian A Holt
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Russell B Doria
- School of Osteopathic Medicine, Campbell University, Lillington, NC 27546, USA
| | - Michael T Dang
- School of Osteopathic Medicine, Campbell University, Lillington, NC 27546, USA
| | - Melissa Hewitt
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Emma Lind
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Elizabeth Prickett
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
| | - Katelyn Aldridge
- Department of Public Health, Brigham Young University, Provo, UT 84602, USA
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4
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Bussink-Voorend D, Hautvast JLA, Vandeberg L, Visser O, Hulscher MEJL. A systematic literature review to clarify the concept of vaccine hesitancy. Nat Hum Behav 2022; 6:1634-1648. [PMID: 35995837 DOI: 10.1038/s41562-022-01431-6] [Citation(s) in RCA: 56] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 07/13/2022] [Indexed: 11/25/2022]
Abstract
Vaccine hesitancy (VH) is considered a top-10 global health threat. The concept of VH has been described and applied inconsistently. This systematic review aims to clarify VH by analysing how it is operationalized. We searched PubMed, Embase and PsycINFO databases on 14 January 2022. We selected 422 studies containing operationalizations of VH for inclusion. One limitation is that studies of lower quality were not excluded. Our qualitative analysis reveals that VH is conceptualized as involving (1) cognitions or affect, (2) behaviour and (3) decision making. A wide variety of methods have been used to measure VH. Our findings indicate the varied and confusing use of the term VH, leading to an impracticable concept. We propose that VH should be defined as a state of indecisiveness regarding a vaccination decision.
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Affiliation(s)
- Daphne Bussink-Voorend
- Radboud University Medical Center, Radboud Institute for Health Sciences, Primary and Community Care, Nijmegen, the Netherlands.
| | - Jeannine L A Hautvast
- Radboud University Medical Center, Radboud Institute for Health Sciences, Primary and Community Care, Nijmegen, the Netherlands
| | - Lisa Vandeberg
- Behavioural Science Institute, Radboud University, Nijmegen, the Netherlands
| | - Olga Visser
- Radboud University Medical Center, Radboud Institute for Health Sciences, Primary and Community Care, Nijmegen, the Netherlands
| | - Marlies E J L Hulscher
- Radboud University Medical Center, Radboud Institute for Health Sciences, IQ Healthcare, Nijmegen, the Netherlands
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5
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Cotfas LA, Delcea C, Gherai R. COVID-19 Vaccine Hesitancy in the Month Following the Start of the Vaccination Process. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2021; 18:10438. [PMID: 34639738 PMCID: PMC8508534 DOI: 10.3390/ijerph181910438] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/18/2021] [Revised: 09/22/2021] [Accepted: 10/01/2021] [Indexed: 11/16/2022]
Abstract
The occurrence of the novel coronavirus has changed a series of aspects related to people's everyday life, the negative effects being felt all around the world. In this context, the production of a vaccine in a short period of time has been of great importance. On the other hand, obtaining a vaccine in such a short time has increased vaccine hesitancy and has activated anti-vaccination speeches. In this context, the aim of the paper is to analyze the dynamics of public opinion on Twitter in the first month after the start of the vaccination process in the UK, with a focus on COVID-19 vaccine hesitancy messages. For this purpose, a dataset containing 5,030,866 tweets in English was collected from Twitter between 8 December 2020-7 January 2021. A stance analysis was conducted after comparing several classical machine learning and deep learning algorithms. The tweets associated to COVID-19 vaccination hesitancy were examined in connection with the major events in the analyzed period, while the main discussion topics were determined using hashtags, n-grams and latent Dirichlet allocation. The results of the study can help the interested parties better address the COVID-19 vaccine hesitancy concerns.
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Affiliation(s)
- Liviu-Adrian Cotfas
- Department of Economic Informatics and Cybernetics, Bucharest University of Economic Studies, 010552 Bucharest, Romania;
| | - Camelia Delcea
- Department of Economic Informatics and Cybernetics, Bucharest University of Economic Studies, 010552 Bucharest, Romania;
| | - Rareș Gherai
- Faculty of Medicine and Pharmacy, University of Oradea, 410073 Oradea, Romania;
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6
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Whelan SO, Moriarty F, Lawlor L, Gorman KM, Beamish J. Vaccine hesitancy and reported non-vaccination in an Irish pediatric outpatient population. Eur J Pediatr 2021; 180:2839-2847. [PMID: 33774718 DOI: 10.1007/s00431-021-04039-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/13/2021] [Accepted: 03/19/2021] [Indexed: 12/19/2022]
Abstract
Vaccine hesitancy is defined as a delay in acceptance, or refusal, of vaccines, despite availability. It is a complex and context specific phenomenon and identified as a global health priority. The "Parent Attitudes about Childhood Vaccines" (PACV) questionnaire is a validated tool for identifying vaccine hesitancy. Our aim was to use the PACV to assess vaccine hesitancy and its relationship with reported non-vaccination in an Irish population, for the first time. Our participants were parents or caregivers of children attending general pediatric clinics in a tertiary pediatric hospital in Dublin, Ireland, between September and December 2018. In total, 436 participants completed the questionnaire. 5.5% of our population reported non-vaccination. Human papilloma virus and measles, mumps, rubella vaccines were the most commonly cited vaccines of concern (11.5% and 6.7%, respectively), and autism spectrum disorder was the most commonly side effect of concern (4.3%). Mean PACV score was 26.9 (SD 19.1), with a significant difference between non-vaccinators and vaccinators (53.2 vs 25.3, p<0.001). Safety and efficacy concerns were the major contributor to non-vaccination. 14.4% of our population were vaccine-hesitant using the conventional cut-off score, which increased to 22% when using an optimal cut-off which maximized sensitivity and specificity. The accuracy of the PACV score to identify non-vaccination was good (area under the ROC curve = 0.827), and the optimal cut-off had a high negative predictive value (98.5%).Conclusion: PACV identified reported non-vaccination with high accuracy in our population. It may be useful to screen vaccine-hesitant parents who could benefit from interventions to improve uptake. What is Known: • Vaccine hesitancy is a leading threat to global health, with falls in vaccine uptake associated with disease outbreaks worldwide. • The Parent Attitudes about Childhood Vaccines (PACV) questionnaire is a validated measure of vaccine hesitancy and correlates with non-vaccination in many populations. What is New: • This large study in a pediatric outpatient clinic setting represents the first use of the PACV in a Western European population to assess vaccination hesitancy. • The PACV may be an effective way of screening a pediatric clinic population to identify vaccine-hesitant parents or caregivers for targeted vaccine promotion.
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Affiliation(s)
- Sean Olann Whelan
- Department of General Pediatrics, CHI at Temple Street, Dublin, Ireland. .,Department of Pediatrics, Cork University Hospital, Cork, Ireland.
| | - Frank Moriarty
- School of Pharmacy and Biomolecular Sciences, Royal College of Surgeons in Ireland, Dublin, Ireland
| | - Lisa Lawlor
- Department of General Pediatrics, CHI at Temple Street, Dublin, Ireland
| | - Kathleen Mary Gorman
- Department of Neurology and Clinical Neurophysiology, CHI at Temple Street, Dublin, Ireland.,School of Medicine and Medical Sciences, University College Dublin, Dublin, Ireland
| | - Joanne Beamish
- Department of General Pediatrics, CHI at Temple Street, Dublin, Ireland
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7
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Zhang MX, Lin XQ, Chen Y, Tung TH, Zhu JS. Determinants of parental hesitancy to vaccinate their children against COVID-19 in China. Expert Rev Vaccines 2021; 20:1339-1349. [PMID: 34376095 DOI: 10.1080/14760584.2021.1967147] [Citation(s) in RCA: 43] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Vaccine hesitancy seriously hinders herd immunity. We explored the determinants of parental hesitancy to vaccinate children against Coronavirus Disease 2019 (COVID-19) in China.A population-based self-administered online questionnaire evaluating parental hesitancy in vaccinating their children against COVID-19 was conducted in Taizhou, China. Of the 2463 parents who received the invitation, 1788 (72.6%) responded to the survey.Of the repondents, 52.5% were hesitant. Mothers exhibited a greater proportion of vaccine hesitancy than fathers did (57.5% vs. 41.7%, P < 0.001). Multiple logistic regression analysis indicated that parents with children under 18 years of age (OR = 0.94, 95%CI: 0.90-0.99), lower knowledge scores about COVID-19 vaccination (Q1: OR = 1.92, 95%CI: 1.37-2.69; Q2: OR = 1.51, 95%CI: 1.10-2.08), lower awareness of the permission of vaccinating children (OR = 1.74, 95%CI: 1.36-2.23) and hesitancy to inoculate themselves (OR = 8.18, 95%CI: 6.48-10.33) were associated with parental hesitancy to inoculate their children. Results also revealed the disparity between fathers and mothers regarding associated factors.This study found that a substantial proportion of parents reported being hesitant to vaccinate children against COVID-19, implying the necessity of comprehensive assessment and health education programs for vaccination systems in China.
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Affiliation(s)
- Mei-Xian Zhang
- Evidence-based Medicine Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China.,Public Laboratory, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Xiao-Qing Lin
- Department of Infectious Diseases, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Yan Chen
- Department of Infectious Diseases, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Tao-Hsin Tung
- Evidence-based Medicine Center, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
| | - Jian-Sheng Zhu
- Department of Infectious Diseases, Taizhou Hospital of Zhejiang Province, Wenzhou Medical University, Linhai, Zhejiang, China
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8
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Sindoni A, Baccolini V, Adamo G, Massimi A, Migliara G, De Vito C, Marzuillo C, Villari P. Effect of the mandatory vaccination law on measles and rubella incidence and vaccination coverage in Italy (2013-2019). Hum Vaccin Immunother 2021; 18:1950505. [PMID: 34346840 PMCID: PMC8920156 DOI: 10.1080/21645515.2021.1950505] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Despite the introduction of the trivalent vaccine (measles, mumps, rubella) more than 20 years ago, measles outbreaks have occurred in Europe, including Italy, due to its underutilization. In Italy mandatory vaccination was established in 2017 (Decree Law 119/2017). This study aimed at evaluating the impact of mandatory vaccination and determining the trend in vaccination coverage for measles and rubella in Italy. We retrieved data from the Annual Status Update, a form sent annually by the Italian National Verification Committee to the Regional Verification Committee for Europe, from 1st January 2013 to 31st December 2019. Since the beginning of 2013, 14,788 cases of measles have been reported, ranging from 256 (3.9 x 1,000,000) to 5,397 (88.4 x 1,000,000) compared to 259 rubella cases for the same period. From 2013 to 2015, vaccination coverage decreased for the first dose of measles (90.4% to 85.3%) and rubella vaccine (90.3% to 85.2%), but then it increased significantly, reinforced by the Italian Decree Law, reaching 94.4% in 2019. The trend for the second dose showed a decrease from 2013 to 2016 (84.1% to 82.2% for measles and 83.7% to 82.0% for rubella), but then increased significantly and reached 90.2% in 2019 for measles and 90.0% for rubella. The mandatory vaccination law has resulted in a significant increase in vaccination coverage for measles and rubella in Italy, and demonstrates encouraging progress toward the 95% target and the restriction of measles transmission. Special attention should be paid to maintaining and further improving vaccination coverage.
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Affiliation(s)
- Alessandro Sindoni
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy.,Health Direction, Policlinico Umberto I University Hospital, Rome, Italy
| | - Valentina Baccolini
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Giovanna Adamo
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy.,Local Health Unit "Roma 2", Rome, Italy
| | - Azzurra Massimi
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Giuseppe Migliara
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Corrado De Vito
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Carolina Marzuillo
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
| | - Paolo Villari
- Department of Public Health and Infectious Diseases, "Sapienza" University of Rome, Rome, Italy
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9
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Więckowska Pająk A, Królak-Olejnik B. Impact of refusal to vaccine in the neonatal period on the implementation of the vaccination calendar in the first year of life. Hum Vaccin Immunother 2021; 17:1156-1161. [PMID: 33074768 PMCID: PMC8018495 DOI: 10.1080/21645515.2020.1804246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Introduction The level of vaccination coverage with obligatory preparations in Poland reaches 98%. This is facilitated by the introduction of the Individual Vaccination Calendar (IVC) compliant with medical contraindications to vaccination. Aim The aim of the study was to assess whether the refusal of vaccinations after birth has an impact on the proper implementation of the vaccination calendar in the first year of life. Methods The study involved healthy, term newborns who were born in the Department of Neonatology in 2011–2015. There were 156 patients enrolled to the study. Among them, 133 were in the control group – vaccinated after birth, and 23 constituted the study group – not vaccinated after birth. Results Not all healthy newborns are vaccinated after birth, statistical significance was obtained between the study and control group (p < 0,00001). Only 48% of patients not vaccinated after birth received TB-vaccine during the first year (p < 0,00053). Parents of 26% of infants in the study and of 2% of infants in the control group declared using the IVC (p < 0,001). Conclusions Proper implementation of the vaccination schedule in the first year of life results from the initiation of vaccinations after birth. Unreasonable introduction of the IVC promotes incorrect timing of mandatory vaccinations.
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Affiliation(s)
| | - Barbara Królak-Olejnik
- Department and Clinic of Neonatology, Wroclaw Medical University, University Hospital, Wrocław, Poland
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10
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CELLA PAOLA, VOGLINO GIANLUCA, BARBERIS ILARIA, ALAGNA ENRICO, ALESSANDRONI CLAUDIA, CUDA ALESSANDRO, D’ALOISIO FRANCESCO, DALLAGIACOMA GIULIA, DE NITTO SARA, DI GASPARE FRANCESCA, GALLIPOLI ORIANA, GENTILE LEANDRO, KUNDISOV LUCIA, NAVARO MONICA, PROVENZANO SANDRO, SANTANGELO OMARENZO, STEFANIZZI PASQUALE, GIANFREDI VINCENZA. Resources for assessing parents' vaccine hesitancy: a systematic review of the literature. JOURNAL OF PREVENTIVE MEDICINE AND HYGIENE 2020; 61:E340-E373. [PMID: 33150224 PMCID: PMC7595070 DOI: 10.15167/2421-4248/jpmh2020.61.3.1448] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2019] [Accepted: 07/22/2020] [Indexed: 11/17/2022]
Abstract
The concept of Vaccine Hesitancy has begun to appear in the scientific landscape, referring to the reluctance of a growing proportion of people to accept the vaccination offer. A variety of factors were identified as being associated with vaccine hesitancy but there was no universal algorithm and currently there aren’t any established metrics to assess either the presence or impact of vaccine hesitancy. The aim of this study was to systematically review the published questionnaires evaluating parental vaccine hesitancy, to highlight the differences among these surveys and offer a general overview on this matter. This study offers a deeper perspective on the available questionnaires, helping future researches to identify the most suitable one according to their own aim and study setting.
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Affiliation(s)
- PAOLA CELLA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Medicine and Surgery, University of Parma, Italy
| | - GIANLUCA VOGLINO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, University of Turin, Italy
| | - ILARIA BARBERIS
- Health Science Department, University of Genoa, Italy
- Correspondence: Ilaria Barberis, Health Science Department, University of Genoa, largo Rosanna Benzi 10, Pad. 3 San Martino Hospital, Italy - Tel./Fax +39 010 3538502 - E-mail:
| | - ENRICO ALAGNA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - CLAUDIA ALESSANDRONI
- Post Graduate School of Hygiene and Preventive Medicine, University of Rome Tor Vergata, Rome, Italy
| | - ALESSANDRO CUDA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - FRANCESCO D’ALOISIO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Life, Health and Environmental Sciences, University of L’Aquila, Italy
| | - GIULIA DALLAGIACOMA
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - SARA DE NITTO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Biomedical Science and Human Oncology, University of Bari Aldo Moro, Italy
| | - FRANCESCA DI GASPARE
- Post Graduate School of Hygiene and Preventive Medicine, University of Rome Tor Vergata, Rome, Italy
| | - ORIANA GALLIPOLI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Life, Health and Environmental Sciences, University of L’Aquila, Italy
| | - LEANDRO GENTILE
- Post Graduate School of Hygiene and Preventive Medicine, Department of Public Health, Experimental and Forensic Medicine, University of Pavia, Italy
| | - LUCIA KUNDISOV
- Post Graduate School of Public Health, University of Siena, Italy
| | - MONICA NAVARO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Experimental Medicine, University of Campania “L. Vanvitelli”, Italy
| | - SANDRO PROVENZANO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - OMAR ENZO SANTANGELO
- Post Graduate School of Hygiene and Preventive Medicine, Department of Health Promotion, Mother and Child Care, Internal Medicine and Medical Specialties “G. D’Alessandro”, University of Palermo, Italy
| | - PASQUALE STEFANIZZI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Biomedical Science and Human Oncology, University of Bari Aldo Moro, Italy
| | - VINCENZA GIANFREDI
- Post Graduate School of Hygiene and Preventive Medicine, Department of Experimental Medicine, University of Perugia, Italy
- School of Medicine, University Vita-Salute San Raffaele, Milan, Italy
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11
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Christianson B, Sharif-Mohamed F, Heath J, Roddy M, Bahta L, Omar H, Rockwood T, Kenyon C. Parental attitudes and decisions regarding MMR vaccination during an outbreak of measles among an undervaccinated Somali community in Minnesota. Vaccine 2020; 38:6979-6984. [PMID: 32981779 DOI: 10.1016/j.vaccine.2020.09.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2020] [Revised: 09/04/2020] [Accepted: 09/07/2020] [Indexed: 10/23/2022]
Abstract
Incidence of measles is increasing in the US, largely due to transmission among growing unvaccinated communities. To elucidate predictors of parental decision to obtain measles, mumps, and rubella (MMR) vaccine for unvaccinated children during a measles outbreak, we surveyed families among a vaccine-hesitant Somali community in Minnesota. The survey assessed attitudes and beliefs about MMR vaccine, motivators for vaccinating, and intention to vaccinate future children on time. Among 300 families surveyed, 95% vaccinated their child with MMR due to fear of measles. The predominating parental concern about MMR vaccine (71%) was a fallacious presumed connection between vaccination and autism. Only 41% of parents intended to vaccinate future children on time with MMR; parents who received recommendations for MMR vaccination from multiple sources were more likely than other parents to intend to do so. These findings support the importance of diverse outreach efforts to increase vaccine coverage among undervaccinated communities.
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Affiliation(s)
- Ben Christianson
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA.
| | | | - Jennifer Heath
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA
| | - Margaret Roddy
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA
| | - Lynn Bahta
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA
| | - Hinda Omar
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA
| | - Todd Rockwood
- University of Minnesota, 420 Delaware Street SE, MMC 729 Mayo, Minneapolis, MN 55455, USA
| | - Cynthia Kenyon
- Minnesota Department of Health, 625 Robert Street North, St. Paul, MN 55164, USA
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Tailored Messages Addressing Human Papillomavirus Vaccination Concerns Improves Behavioral Intent Among Mothers: A Randomized Controlled Trial. J Adolesc Health 2020; 67:253-261. [PMID: 32199723 DOI: 10.1016/j.jadohealth.2020.01.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 11/13/2019] [Accepted: 01/15/2020] [Indexed: 11/20/2022]
Abstract
PURPOSE The aim of the study was to determine whether supplementing a bundled recommendation (recommendation for all 11- to 12-year-old platform vaccines) with tailored messaging that addressed one versus all parental concerns improved human papillomavirus (HPV) vaccination intent among mothers. METHODS We conducted a Web-based randomized controlled trial, randomizing mothers who did not intend to vaccinate their 11- to 14-year-old child against HPV to (1) bundled recommendation video ("control"); (2) control + video addressing the top HPV vaccine concern; or (3) control + ≥1 videos addressing all concerns. Outcomes were HPV vaccination intent (1 = extremely unlikely and 10 = extremely likely) and strength of main concern (1 = a little concerned and 10 = very concerned). We assessed differences in intervention effects using generalized linear models for vaccine intent and mixed models for the strength of main concern. RESULTS Of the 762 mothers, 51% had a female child, 82% of children were white, and 90% were non-Hispanic. The mean intent to vaccinate postintervention ranged from 3.5 (95% confidence interval [CI] = 3.1-3.8) in the control group to 4.2 (95% CI = 3.9-4.6) in the all-concerns group (p = .01). The mean strength of the concerns declined pre- to postintervention by .1 (95% CI = -.1 to .3) in the control group (p = .42), .6 (95% CI = .4-.9) in the top concern group (p < .001), and .7 (95% CI = .5-1.0) in the all-concerns group (p < .001). However, the mean strength of the main concerns postintervention remained high (≥7.0 for each group). CONCLUSIONS Tailored messages addressing all concerns improved HPV vaccination intent and reduced the strength of the main concern more than bundled messages alone, but intent remained low and strength of the main concerns remained high in this vaccine-hesitant population.
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Cuong HQ, Nguyen HX, Van Hau P, Ha NLK, Lan PT, Mounts A, Nguyen TMN. Gap in measles vaccination coverage among children aged 9 months to 10 years in Ho Chi Minh City, Viet Nam, 2014. Western Pac Surveill Response J 2019; 10:39-45. [PMID: 32133210 PMCID: PMC7043096 DOI: 10.5365/wpsar.2017.8.2.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
INTRODUCTION When Viet Nam launched the Expanded Programme on Immunization in 1981, it covered six vaccines, including measles. Subsequently, Viet Nam experienced a marked reduction in measles infections. A nationwide measles epidemic occurred in April 2014 and an investigation found that 86% of affected children aged 9 months to 10 years were not fully vaccinated; therefore, understanding the reasons for not vaccinating could improve vaccination coverage. METHOD We performed a cross-sectional study to determine vaccination coverage and reasons for non-vaccination among children aged 9 months to 10 years in six districts in Ho Chi Minh City with the highest number of measles cases in 2014. Measles vaccination status of the youngest child in each household was determined and reasons for non-vaccination were investigated. A χ2 test and multiple logistic regression were used to identify independent predictors of full vaccination. RESULTS In total, 207 children were enrolled during the study period in 2014. Full measles vaccination coverage was 55% in these households, and 73% of parents were aware of the importance of measles vaccination to protect their children. We found that the father's education level (under high school versus high school and above) and the site where the survey was conducted were significantly associated with vaccination status. CONCLUSION The vaccination coverage was lower than the coverage reported by district preventive medicine centres of the seven study wards. Lack of the second vaccination was a key obstacle to eliminating the vaccination gap. A catch-up mass vaccination campaign or health promotion of measles vaccination directed towards parents should be considered to improve vaccination coverage.
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Affiliation(s)
- Hoang Quoc Cuong
- Pasteur Institute, Ho Chi Minh City, Viet Nam
- Field Epidemiology Training Program, Ho Chi Minh City, Viet Nam
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Quinn SC, Jamison AM, An J, Hancock GR, Freimuth VS. Measuring vaccine hesitancy, confidence, trust and flu vaccine uptake: Results of a national survey of White and African American adults. Vaccine 2019; 37:1168-1173. [DOI: 10.1016/j.vaccine.2019.01.033] [Citation(s) in RCA: 140] [Impact Index Per Article: 28.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 01/07/2019] [Indexed: 01/10/2023]
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Perspectives on the Measles, Mumps and Rubella Vaccination among Somali Mothers in Stockholm. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2018; 15:ijerph15112428. [PMID: 30388799 PMCID: PMC6265853 DOI: 10.3390/ijerph15112428] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/10/2018] [Accepted: 10/19/2018] [Indexed: 01/21/2023]
Abstract
Background: Vaccination hesitancy and skepticism among parents hinders progress in achieving full vaccination coverage. Swedish measles, mumps and rubella (MMR) vaccine coverage is high however some areas with low vaccination coverage risk outbreaks. This study aimed to explore factors influencing the decision of Somali parents living in the Rinkeby and Tensta districts of Stockholm, Sweden, on whether or not to vaccinate their children with the measles, mumps and rubella (MMR) vaccine. Method: Participants were 13 mothers of at least one child aged 18 months to 5 years, who were recruited using snowball sampling. In-depth interviews were conducted in Somali and Swedish languages and the data generated was analysed using qualitative content analysis. Both written and verbal informed consent were obtained from participants. Results: Seven of the mothers had not vaccinated their youngest child at the time of the study and decided to postpone the vaccination until their child became older (delayers). The other six mothers had vaccinated their child for MMR at the appointed time (timely vaccinators). The analysis of the data revealed two main themes: (1) barriers to vaccinate on time, included issues surrounding fear of the child not speaking and unpleasant encounters with nurses and (2) facilitating factors to vaccinate on time, included heeding vaccinating parents’ advice, trust in nurses and trust in God. The mothers who had vaccinated their children had a positive impact in influencing other mothers to also vaccinate. Conclusions: Fear, based on the perceived risk that vaccination will lead to autism, among Somali mothers in Tensta and Rinkeby is evident and influenced by the opinions of friends and relatives. Child Healthcare Center nurses are important in the decision-making process regarding acceptance of MMR vaccination. There is a need to address mothers’ concerns regarding vaccine safety while improving the approach of nurses as they address these concerns.
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Xeuatvongsa A, Hachiya M, Miyano S, Mizoue T, Kitamura T. Determination of factors affecting the vaccination status of children aged 12-35 months in Lao People's Democratic Republic. Heliyon 2017; 3:e00265. [PMID: 28367510 PMCID: PMC5362045 DOI: 10.1016/j.heliyon.2017.e00265] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2017] [Revised: 02/26/2017] [Accepted: 03/09/2017] [Indexed: 12/02/2022] Open
Abstract
Vaccines are one of the most important achievements in public health, and a major contributor to this success is the Expanded Programme on Immunization. The utilisation of vaccination services and completion of the recommended schedule are determined by numerous factors. In Lao People’s Democratic Republic (Lao PDR), the overall immunisation coverage has been improving. However, notwithstanding the improvement in immunisation coverage and the supplementary immunisation activities, there have been measles, diphtheria, and polio outbreaks in the country. The recent multicounty study of household health surveys revealed that the within-country economic-related inequality in the delivery of a vaccine was still high in Lao PDR. Our previous work evaluated the factors associated with vaccination status among the children aged 5–9 years old, which was older age group for this type of study. This study evaluated factors that affect vaccination status among children aged between 12 and 35 months. It is a nationwide population-based cross-sectional study that used data obtained through multistage cluster sampling. We found that the proportion of infants who were fully immunised was lower than the national target and that “maternal ethnicity” (odds ratio (OR) 0.34, 95% confidence interval [CI]: 0.20–0.60), “paternal education” (OR 1.87, 95% CI: 1.12–3.10), and “source of information about vaccination date by medical staff” (OR 1.65, 95% CI: 1.01–2.71) were significantly associated with the children’s vaccination status. Numerous factors are associated with the completion of the recommended vaccine schedule, and some factors are location-specific. Identification of these factors should lead to actions for facilitating the optimal use of vaccination services by all the children in Lao PDR.
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Affiliation(s)
- Anonh Xeuatvongsa
- Deputy Director of the Mother and Child Health Center/National Manager of the National Immunization Program, Ministry of Health, Lao People's Democratic Republic: Ban Vutnak, Sisattanak District, Vientiane, Lao People's Democratic Republic
| | - Masahiko Hachiya
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo 162-8655, Japan
| | - Shinsuke Miyano
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo 162-8655, Japan
| | - Tetsuya Mizoue
- Center for Clinical Sciences, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo 162-8655, Japan
| | - Tomomi Kitamura
- Bureau of International Health Cooperation, National Center for Global Health and Medicine, 1-21-1 Toyama, Shinjuku, Tokyo 162-8655, Japan
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Jarrett C, Wilson R, O'Leary M, Eckersberger E, Larson HJ. Strategies for addressing vaccine hesitancy - A systematic review. Vaccine 2015; 33:4180-90. [PMID: 25896377 DOI: 10.1016/j.vaccine.2015.04.040] [Citation(s) in RCA: 607] [Impact Index Per Article: 67.4] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
UNLABELLED The purpose of this systematic review is to identify, describe and assess the potential effectiveness of strategies to respond to issues of vaccine hesitancy that have been implemented and evaluated across diverse global contexts. METHODS A systematic review of peer reviewed (January 2007-October 2013) and grey literature (up to October 2013) was conducted using a broad search strategy, built to capture multiple dimensions of public trust, confidence and hesitancy concerning vaccines. This search strategy was applied and adapted across several databases and organizational websites. Descriptive analyses were undertaken for 166 (peer reviewed) and 15 (grey literature) evaluation studies. In addition, the quality of evidence relating to a series of PICO (population, intervention, comparison/control, outcomes) questions defined by the SAGE Working Group on Vaccine Hesitancy (WG) was assessed using Grading of Recommendations Assessment, Development and Evaluation (GRADE) criteria; data were analyzed using Review Manager. RESULTS Across the literature, few strategies to address vaccine hesitancy were found to have been evaluated for impact on either vaccination uptake and/or changes in knowledge, awareness or attitude (only 14% of peer reviewed and 25% of grey literature). The majority of evaluation studies were based in the Americas and primarily focused on influenza, human papillomavirus (HPV) and childhood vaccines. In low- and middle-income regions, the focus was on diphtheria, tetanus and pertussis, and polio. Across all regions, most interventions were multi-component and the majority of strategies focused on raising knowledge and awareness. Thirteen relevant studies were used for the GRADE assessment that indicated evidence of moderate quality for the use of social mobilization, mass media, communication tool-based training for health-care workers, non-financial incentives and reminder/recall-based interventions. Overall, our results showed that multicomponent and dialogue-based interventions were most effective. However, given the complexity of vaccine hesitancy and the limited evidence available on how it can be addressed, identified strategies should be carefully tailored according to the target population, their reasons for hesitancy, and the specific context.
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Affiliation(s)
- Caitlin Jarrett
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Rose Wilson
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Maureen O'Leary
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Elisabeth Eckersberger
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom
| | - Heidi J Larson
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, United Kingdom.
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Vaccine hesitancy: clarifying a theoretical framework for an ambiguous notion. PLOS CURRENTS 2015; 7:ecurrents.outbreaks.6844c80ff9f5b273f34c91f71b7fc289. [PMID: 25789201 PMCID: PMC4353679 DOI: 10.1371/currents.outbreaks.6844c80ff9f5b273f34c91f71b7fc289] [Citation(s) in RCA: 145] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
Today, according to many public health experts, public confidence in vaccines is waning. The term "vaccine hesitancy" (VH) is increasingly used to describe the spread of such vaccine reluctance. But VH is an ambiguous notion and its theoretical background appears uncertain. To clarify this concept, we first review the current definitions of VH in the public health literature and examine its most prominent characteristics. VH has been defined as a set of beliefs, attitudes, or behaviours, or some combination of them, shared by a large and heterogeneous portion of the population and including people who exhibit reluctant conformism (they may either decline a vaccine, delay it or accept it despite their doubts) and vaccine-specific behaviours. Secondly, we underline some of the ambiguities of this notion and argue that it is more a catchall category than a real concept. We also call into question the usefulness of understanding VH as an intermediate position along a continuum ranging from anti-vaccine to pro-vaccine attitudes, and we discuss its qualification as a belief, attitude or behaviour. Thirdly, we propose a theoretical framework, based on previous literature and taking into account some major structural features of contemporary societies, that considers VH as a kind of decision-making process that depends on people's level of commitment to healthism/risk culture and on their level of confidence in the health authorities and mainstream medicine.
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Peretti-Watel P, Larson HJ, Ward JK, Schulz WS, Verger P. Vaccine hesitancy: clarifying a theoretical framework for an ambiguous notion. PLOS CURRENTS 2015. [PMID: 25789201 DOI: 10.1371/currents.outbreaks] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 04/04/2023]
Abstract
Today, according to many public health experts, public confidence in vaccines is waning. The term "vaccine hesitancy" (VH) is increasingly used to describe the spread of such vaccine reluctance. But VH is an ambiguous notion and its theoretical background appears uncertain. To clarify this concept, we first review the current definitions of VH in the public health literature and examine its most prominent characteristics. VH has been defined as a set of beliefs, attitudes, or behaviours, or some combination of them, shared by a large and heterogeneous portion of the population and including people who exhibit reluctant conformism (they may either decline a vaccine, delay it or accept it despite their doubts) and vaccine-specific behaviours. Secondly, we underline some of the ambiguities of this notion and argue that it is more a catchall category than a real concept. We also call into question the usefulness of understanding VH as an intermediate position along a continuum ranging from anti-vaccine to pro-vaccine attitudes, and we discuss its qualification as a belief, attitude or behaviour. Thirdly, we propose a theoretical framework, based on previous literature and taking into account some major structural features of contemporary societies, that considers VH as a kind of decision-making process that depends on people's level of commitment to healthism/risk culture and on their level of confidence in the health authorities and mainstream medicine.
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Affiliation(s)
- Patrick Peretti-Watel
- INSERM, UMR912 (SESSTIM), 13006, Marseille, France; Aix Marseille University, UMR_S912, IRD, 13006, Marseille, France; ORS PACA, Southeastern Health Regional Observatory, 13006, Marseille, France
| | - Heidi J Larson
- Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, UK
| | - Jeremy K Ward
- INSERM, UMR912 (SESSTIM), 13006, Marseille, France; Université Paris Diderot, UMR8236 (LIED), 75013 Paris
| | - William S Schulz
- Department of Infectious Disease Epidemiology, London School of Hygiene & Tropical Medicine, London, UK
| | - Pierre Verger
- INSERM, UMR912 (SESSTIM), 13006, Marseille, France; Aix Marseille University, UMR_S912, IRD, 13006, Marseille, France; ORS PACA, Southeastern Health Regional Observatory, 13006, Marseille, France; Inserm, F-Crin, Innovative Clinical Research Network on Vaccination (I-Reivac)
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20
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Hendrix KS, Finnell SME, Zimet GD, Sturm LA, Lane KA, Downs SM. Vaccine message framing and parents' intent to immunize their infants for MMR. Pediatrics 2014; 134:e675-83. [PMID: 25136038 PMCID: PMC4143998 DOI: 10.1542/peds.2013-4077] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 06/10/2014] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND AND OBJECTIVE Emphasizing societal benefits of vaccines has been linked to increased vaccination intentions in adults. It is unclear if this pattern holds for parents deciding whether to vaccinate their children. The objective was to determine whether emphasizing the benefits of measles-mumps-rubella (MMR) vaccination directly to the vaccine recipient or to society differentially impacts parents' vaccine intentions for their infants. METHODS In a national online survey, parents (N = 802) of infants <12 months old were randomly assigned to receive 1 of 4 MMR vaccine messages: (1) the Centers for Disease Control and Prevention Vaccine Information Statement (VIS), (2) VIS and information emphasizing the MMR vaccine's benefits to the child, (3) VIS and information emphasizing societal benefits, or (4) VIS and information emphasizing benefits both to the child and society. Parents reported their likelihood of vaccinating their infants for MMR on a response scale of 0 (extremely unlikely) to 100 (extremely likely). RESULTS Compared with the VIS-only group (mean intention = 86.3), parents reported increased vaccine intentions for their infants when receiving additional information emphasizing the MMR vaccine's benefits either directly to the child (mean intention = 91.6, P = .01) or to both the child and society (mean intention = 90.8, P = .03). Emphasizing the MMR vaccine's benefits only to society did not increase intentions (mean intention = 86.4, P = .97). CONCLUSIONS We did not see increases in parents' MMR vaccine intentions for their infants when societal benefits were emphasized without mention of benefits directly to the child. This finding suggests that providers should emphasize benefits directly to the child. Mentioning societal benefits seems to neither add value to, nor interfere with, information highlighting benefits directly to the child.
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Affiliation(s)
- Kristin S Hendrix
- Departments of Pediatrics, and Regenstrief Institute, Inc, Indianapolis, Indiana; and
| | - S Maria E Finnell
- Departments of Pediatrics, and Regenstrief Institute, Inc, Indianapolis, Indiana; and Ryan White Center for Pediatric Infectious Disease, Riley Hospital for Children, Indianapolis, Indiana
| | | | | | - Kathleen A Lane
- Biostatistics, Indiana University School of Medicine, Indianapolis, Indiana
| | - Stephen M Downs
- Departments of Pediatrics, and Regenstrief Institute, Inc, Indianapolis, Indiana; and
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Dubé E, Laberge C, Guay M, Bramadat P, Roy R, Bettinger JA. Vaccine hesitancy: an overview. Hum Vaccin Immunother 2013; 9:1763-73. [PMID: 23584253 PMCID: PMC3906279 DOI: 10.4161/hv.24657] [Citation(s) in RCA: 1116] [Impact Index Per Article: 101.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2013] [Revised: 04/04/2013] [Accepted: 04/11/2013] [Indexed: 01/27/2023] Open
Abstract
Despite being recognized as one of the most successful public health measures, vaccination is perceived as unsafe and unnecessary by a growing number of individuals. Lack of confidence in vaccines is now considered a threat to the success of vaccination programs. Vaccine hesitancy is believed to be responsible for decreasing vaccine coverage and an increasing risk of vaccine-preventable disease outbreaks and epidemics. This review provides an overview of the phenomenon of vaccine hesitancy. First, we will characterize vaccine hesitancy and suggest the possible causes of the apparent increase in vaccine hesitancy in the developed world. Then we will look at determinants of individual decision-making about vaccination.
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Affiliation(s)
- Eve Dubé
- Centre de recherche du CHU de Québec; Québec, QC Canada
- Institut national de santé publique du Québec (INSPQ); Québec, QC Canada
- Université Laval; Québec City, QC Canada
| | | | - Maryse Guay
- Institut national de santé publique du Québec (INSPQ); Québec, QC Canada
- Université de Sherbrooke; Longueuil, QC Canada
- Centre de recherche du CSSS Champlain—Charles-LeMoyne; Longueuil, QC Canada
- Direction de santé publique de la Montérégie; Québec, QC Canada
| | | | - Réal Roy
- University of Victoria; Saanich, BC Canada
| | - Julie A. Bettinger
- University of British Columbia; Vancouver, BC Canada
- Vaccine Evaluation Center; Women’s Health Research Institute; BC Women’s and Children's Hospital; Vancouver, BC Canada
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Abstract
Parental vaccine hesitancy is a growing problem affecting the health of children and the larger population. This article describes the evolution of the vaccine hesitancy movement and the individual, vaccine-specific and societal factors contributing to this phenomenon. In addition, potential strategies to mitigate the rising tide of parent vaccine reluctance and refusal are discussed.
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Affiliation(s)
- Charitha Gowda
- Division of Infectious Diseases; University of Pennsylvania; Philadelphia, PA USA
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