Exploring parents' reasons for incomplete childhood immunisation in Indonesia

Exploring social media influences on vaccine decision-making in parents: a netnography

Background

Immunization is one of the most significant health initiatives of recent times. Despite this, vaccine hesitancy is increasing and was listed as one of the top 10 threats to global health by the World Health Organization in 2019. A major factor associated with vaccine hesitancy is thought to be the viral spread of misinformation by a small but active anti-vaccination movement.

Objectives

The purpose of this study was to explore the influences of social media on vaccine decision-making in parents.

Design

This study is part of a larger body of research that explored vaccine decision-making in parents. Other methods included were an online survey and semi-structured interviews. This study investigated the influence of cyberculture on parents in an online environment.

Method

This study employed netnography, a form of qualitative inquiry with its roots in ethnography as methodology and a purpose-designed Facebook page as the means of exploring a purpose-designed online community with a particular focus on the culture, belief systems and influences present. Both manual and computer-assisted thematic analyses were used to analyse the data obtained.

Results

Three key themes were identified in this study. These included vaccine safety concerns, the emotional debate and COVID-19-specific issues. The results indicated the presence of strong anti-vaccination sentiment combined with an 'infodemic' of conspiracy theories, misinformation and vitriol with the potential to negatively impact parents seeking immunization information.

Conclusion

Given the popularity and accessibility of social media and the ready access to misinformation present online, it is evident that parental vaccine decision-making may be impacted adversely. Therefore, it is important that healthcare professionals are aware of this and provide adequate and timely education prior to parents seeking information on social media.

Influence of the COVID-19 pandemic on caregiver beliefs and experiences of routine childhood immunisation in Indonesia

The COVID-19 pandemic contributed to significant health services declines in South-East Asia including Indonesia, which experienced a decline in routine immunisation of children. This study investigated the influence of the pandemic on the beliefs and experiences of caregivers of children related to routine immunisation. This study involved a cross-sectional survey among 1399 caregivers of children aged 0-24 months in Central Java and West Nusa Tenggara provinces from March-April 2022. Data on beliefs and experiences of childhood immunizations were captured using core items from the WHO/UNICEF Behavioural and Social Drivers of Immunization (BeSD) survey. Bivariate and multivariate logistic regression analyses identified factors associated with uptake of routine immunisations. While nearly all caregivers (95.7%) reported wanting their child to receive all recommended routine immunisations, only 40.3% of children aged 2-24 months were up-to-date with all vaccines for age. Factors associated with up-to-date included higher parental education (aOR: 1.76, 95% CI 1.02-3.05), higher household income (aOR: 1.54, 95% CI 1.09-2.18), and caregivers who found it moderately or very easy to get immunisations (aOR: 2.26/2.22, 95% CI 1.06-4.83/1.06-4.69). Recovery efforts should prioritise responding to the factors associated with immunisation status (e.g., perceived ease of access) and on families experiencing disadvantage (e.g., caregivers with lower education and household income) to ensure protections against future outbreaks that are responsive to the context-specific needs and priorities of districts and communities.

Vaccine hesitancy within the Muslim community: Islamic faith and public health perspectives

Vaccine hesitancy is a growing public health concern that has fueled the resurgence of vaccine-preventable diseases in several Muslim-majority countries. Although multiple factors are associated with vaccine hesitancy, certain religious deliberations are significant in determining individuals' vaccine-related decisions and attitudes. In this review article, we summarize the literature on religious factors linked to vaccine hesitancy among Muslims, thoroughly discuss the Islamic law (sharia) viewpoint on vaccination and offer recommendations to address vaccine hesitancy in Muslim communities. Halal content/labeling and the influence of religious leaders were identified as major determinants of vaccination choices among Muslims. The core concepts of sharia, such as "preservation of life," "necessities permit prohibitions," and "empowering social responsibility for the greater public benefit" promote vaccination. Engaging religious leaders in immunization programs is crucial to enhance the uptake of vaccines among Muslims.

Pushed to the Fringe - The Impact of Vaccine Hesitancy on Children and Families

Vaccine hesitancy has been described as any delay or refusal of vaccines despite their availability and is increasing in Australia and other middle to high-income countries. The aim of this study is to gain a deep understanding of the experiences and influences on vaccine hesitant children and their families. A qualitative interview approach was undertaken with vaccine hesitant parents and pregnant women (n = 12). Semi-structured interviews were conducted by telephone. Inductive thematic analysis was undertaken on data obtained using the guidelines of Braun and Clarke. Three main themes were identified in this study, including Pushed to the fringe; A culture of Distrust; and Coerced choices. The study revealed that vaccine hesitant parents felt isolated and pushed to the fringe of society. They also expressed dissatisfaction with the Australian "No Jab - No Pay" and "No Jab - No Play" legislation. This contributed to feelings of marginalization. Participants also cited a breakdown in the therapeutic relationships, which impacted their child's health. Additionally, a lack of sufficient information was received to achieve informed consent. These results suggest that there is a need for enhanced education for some health-care professionals, many of whom have reported being confronted by conversations with vaccine hesitant parents.

Vaccination hesitation in children under five years of age: a scoping review

OBJECTIVES

to synthesize scientific evidence on vaccine hesitancy in children under five years of age and its associated factors.

METHODS

a scoping review, conducted according to the methodological structure proposed by the JBI. Searches were carried out in the Latin American and Caribbean Center on Health Sciences Information, Scientific Electronic Library Online and PubMed databases, including gray literature. Studies in English, Spanish and Portuguese were included, without temporal delimitation. Editorials, studies that did not address vaccine hesitancy in children under five years of age and were not aligned with the objective and research question were excluded. The sample consisted of 18 articles.

RESULTS

misinformation, concern about adverse effects, distrust about efficacy, affliction regarding administration simultaneously, and insecurity in relation to the laboratories were the reported reasons.

CONCLUSIONS

strategies are needed to combat the lack of information about immunobiological agents, as misinformation was the main factor in parents' vaccine hesitation.

Routine immunization experience and practices during the COVID-19 pandemic of caregivers attending a tertiary hospital in Cape Town

Introduction

Immunizations are successful, cost-effective interventions for the control of infectious diseases and preventing mortality. Lockdown restrictions during the COVID-19 pandemic had adverse effects on child-health including access to immunizations. Our study aimed to document immunization status, describe caregiver experiences around accessing immunizations during the COVID-19 pandemic and identify any significant factors associated with immunization status.

Methods

Caregivers, with children between the ages of 10 to 33 months, attending Tygerberg Hospital Paediatric Department were invited to complete an anonymous survey from 15th September-15th December 2022. Data was captured using a REDCap questionnaire and analysed using Stata Version 17.

Results

171 caregivers completed the survey. Immunizations were up to date in 81%. Most (155, 88%) agreed it was important to immunize their child. A third of caregivers (55) felt it was unsafe to attend the clinic and 37% (62) agreed it was difficult to attend. Caregivers receiving a social grant (p = 0.023) or who felt safe attending clinic (p = 0.053) were more likely to be up to date with immunizations. Three-quarters (128, 78%) were aware of recommendations to continue immunization. These caregivers were more likely to think it was important to immunize on time (p = 0.003) and to receive family encouragement (p = 0.001). Caregivers were more likely to attend clinic if they felt it was important to vaccinate on time (p < 0.001) or felt safe attending clinic (p = 0.036).

Conclusion

Immunization rates were higher than expected but below global targets. Although caregivers feel immunizations are important, unknowns still instilled fear of attending clinics. Social factors such as family support and social grants improve vaccine seeking behaviour.

Correlates of COVID-19 Vaccine Acceptance and Hesitancy in Rural Communities in Western Kenya

Vaccine hesitancy is a significant global public health concern. This study sought to determine the correlates of acceptance and hesitancy regarding COVID-19 vaccines in rural populations of selected counties in Western Kenya and assess the strategies that can be used to improve COVID-19 vaccine acceptance in Kenya. The study used a quantitative research strategy with a sample of 806 individuals in the Kisumu, Vihiga, and Kakamega counties. Descriptive statistics, correlations and regression analyses were used. Of the 806 study participants, 55% were males and 45% females. Vaccine acceptance was significantly associated with being a male (AOR: 1.46, 95% CI: 1.24-1.59, p < 0.031), having no formal education (AOR: 2.25, 95% CI: 1.16-4.40, p < 0.02), working in the private sector (AOR: 5.78, 95% CI: 3.28-10.88 p < 0.02), and have low income (KES 0-999 (USD 0-9.16)), (AOR: 2.35, 95% CI: 1.13-3.47, p < 0.02). Conclusions: The current study suggests that male gender, no formal education, working in the private sector, and low income KES 0-999 (USD 0-9.6) are significant factors influencing awareness of and possible acceptance of COVID-19 vaccination.

A taxonomy of anti-vaccination arguments from a systematic literature review and text modelling

The proliferation of anti-vaccination arguments is a threat to the success of many immunization programmes. Effective rebuttal of contrarian arguments requires an approach that goes beyond addressing flaws in the arguments, by also considering the attitude roots-that is, the underlying psychological attributes driving a person's belief-of opposition to vaccines. Here, through a pre-registered systematic literature review of 152 scientific articles and thematic analysis of anti-vaccination arguments, we developed a hierarchical taxonomy that relates common arguments and themes to 11 attitude roots that explain why an individual might express opposition to vaccination. We further validated our taxonomy on coronavirus disease 2019 anti-vaccination misinformation, through a combination of human coding and machine learning using natural language processing algorithms. Overall, the taxonomy serves as a theoretical framework to link expressed opposition of vaccines to their underlying psychological processes. This enables future work to develop targeted rebuttals and other interventions that address the underlying motives of anti-vaccination arguments.

Parental perceptions, attitudes, and beliefs regarding vaccination of children aged 0-5 years: A qualitative study of hill-tribe communities, Thailand

The widespread availability and use of vaccines have tremendously reduced morbidity and deaths related to infectious diseases globally. However, in hill-tribe communities in Northern Thailand, vaccination rates remain low, and there is limited literature on parental perceptions, attitudes, and beliefs about vaccination for children under five years of age. We conducted a qualitative study employing semi-structured interviews to understand parents' perceptions, attitudes, and beliefs about vaccinations. A purposive sample was used to recruit participants. Data were analyzed using thematic analysis. 74 hill-tribe parents (14 Akha, 11 Hmong, 12 Lahu, 13 Lisu, 12 Karen, and 12 Yao) were interviewed. Four themes emerged from the interviews: 1) traditional beliefs, and practices 2) traumatic experiences, 3) lack of information and effective communication, and 4) trust and support from the community. Findings highlight that it is crucial to build trust by providing knowledge, appropriate information, and advice about vaccinations in order to improve vaccine coverage in children under five years of age in the hill-tribe context.

Facilitators and barriers of preventive behaviors against COVID-19 during Ramadan: A phenomenology of Indonesian adults

Introduction

Intercity mobility restriction, physical distancing, and mask-wearing are preventive behaviors to reduce the transmission of COVID-19. However, strong cultural and religious traditions become particular challenges in Indonesia. This study uses the Behavior Change Wheel to explore barriers and facilitators for intercity mobility restriction, physical distancing, and mask-wearing during Ramadan.

Methods

Semi-structured in-depth interviews with 50 Indonesian adults were conducted between 10 April and 4 June 2020. Having mapped codes into the Capacity, Opportunity, Motivation - Behavior (COM-B), and Theoretical Domain Framework (TDF) model, we conducted summative content analysis to analyze the most identified factors to preventive behaviors and proposed interventions to address those factors.

Results

Belief about the consequence of preventive behaviors was the most mentioned facilitator to all preventive behaviors among compliers. However, optimism as a TDF factor was commonly mentioned as a barrier to preventive behaviors among non-compliers, while environmental context and resources were the most commonly mentioned factors for intercity mobility restriction.

Conclusions

Public health intervention should be implemented considering the persuasion and involvement of religious and local leaders. Concerning job and economic context, policy related to the intercity mobility restriction should be reconsidered to prevent a counterproductive effect.

Barriers to and Facilitators of Hepatitis B Vaccination among the Adult Population in Indonesia: A Mixed Methods Study

To reach the goals of the Global Hepatitis Elimination 2030 program, Indonesia is now preparing a new regulation for hepatitis B vaccinations for adult population. This study aimed to determine the factors influencing vaccine uptake for hepatitis B in the adult population, and identify barriers to, and facilitators of, hepatitis B vaccination programmes. An explanatory sequential mixed methods design was implemented in this study. We conducted a survey involving 893 participants in the general population followed by 14 in-depth interviews with health providers. The survey found that only 15% (95% confidence interval 13-18%) of participants received at least one dose of the hepatitis B vaccine. Factors associated with vaccine uptake were, living in Yogyakarta compared to living in Aceh, having secondary and higher education compared to primary education, working as a health worker compared to working in other sectors, and having health insurance that covered hepatitis B vaccination compared to not having such health insurance. Our qualitative study also identified several barriers to the adult hepatitis B vaccination programme in Indonesia such as the high cost of vaccination, lack of vaccine availability in certain areas, limited human resources to implement the hepatitis B vaccination programme, and the ineffective dissemination of hepatitis B vaccination. This study highlights that accessibility and affordability of vaccinations are important determinants of vaccination uptake that should be taken into account when planning vaccination campaigns.

Locating vaccine uptake and public participation in Ukraine: An exploratory qualitative study on attitudes and barriers to early childhood vaccination

A growing body of literature on vaccine hesitancy considers context and the intersecting factors affecting vaccine uptake. This study attempts to add focus to the conversation of vaccines in Ukraine by exploring how vaccines are perceived and how local stakeholders envision solutions to the problems surrounding vaccine uptake. Twenty-five in-depth interviews were carried out among parents of children under 6 years of age as well as health practitioners and other experts in Ukraine. Results were presented to stakeholders during a dialogue session to discuss the implications for policy recommendations. The Roma parents interviewed faced structural barriers to vaccine access, while other groups received vaccine information from others in their communities, such as family members or religious organisations. Mistrust of the health system and lack of access to reliable information preceded many doubts parents expressed surrounding vaccines. Stakeholders agreed that better, more targeted communication strategies are needed, as well as increased engagement with and training of medical practitioners. Qualitative methods allowed for a deeper, more nuanced understanding of the factors contributing to low vaccine uptake, of which vaccine hesitancy is only one part. The vulnerability-informed approach used may have broader applications for community engagement and responding to infectious diseases and crises.

Decision making in vaccine hesitant parents and pregnant women - An integrative review

Objectives

: Vaccine refusal is increasing in Australia and is a major concern in high- and middle-income countries. There is evidence to suggest that some parents, even those who elect to immunise, may be vaccine hesitant with some manipulating the schedule by excluding or delaying some vaccines. The aim of this review was to gain an understanding of factors that influence vaccine decision-making in pregnant women and parents of children.

Design

: An integrative review approach was used to produce an analysis of existing literature on vaccine decision-making in pregnancy and parents. As the broadest of review methods, an integrative review can include a range of experimental and non-experimental research, thereby ensuring the inclusion of data from multiple perspectives.

Data Sources

: Online databases were searched for research related to vaccine decision-making in pregnant women and parents. Original and review articles were sought that were published in English between 2015 and 2021. Reviewed articles included qualitative and quantitative studies and systematic reviews. No mixed methods papers were located or excluded from this review.

Review methods

: The review method was an integrative review informed by Coughlan.

Results

: Papers from thirteen predominantly high- and middle-income countries were selected for this review. A total of 31 articles fit the inclusion/exclusion criteria, including qualitative, quantitative and review articles. Three main themes were identified including the role of healthcare professionals, vaccine safety concerns and alternative influences. Alternative influences included: social media, friends and family, religion, conspiracy theories and salutogenic parenting. Findings suggest that high levels of anxiety are involved in vaccine decision-making with parents seeking information from multiple sources including healthcare professionals, friends and family and social media.

Conclusions

: Pregnancy is an ideal time to provide education on both pregnancy and childhood vaccinations. However, some parents reported dissatisfaction in their therapeutic relationships with healthcare professionals. As a result, parents can resort to their own information seeking, in the main via social media which has been linked to vaccine refusal. Additionally, some healthcare professionals report feeling inadequately prepared for the role of immunisation promotion and provision. Parental information seeking from non-traditional sources has been shown to result in the acquisition of misinformation, exposure to conspiracy theories, the inevitable loss of vaccine confidence and subsequent vaccine refusal.

Factors affecting childhood immunization: Thematic analysis of parents and healthcare workers' perceptions

Immunization against common childhood diseases is an important strategy as it is critical for reducing the global child morbidity and mortality. This review explores the perceptions of parents and HCWs toward childhood immunization. The PRISMA guideline was used to search and include the studies. Relevant electronic databases were systemically searched for the years ranging from 2000 to 2021 to identify studies reported in English. Themes were then identified using thematic analysis. A total of 44 studies met the review criteria and were summarized and categorized into 4 themes: barriers to immunization, parental knowledge, attitude and behavior (KAB), health system factors and HCWs' KAB. This review found that immunization decision-making is a complex process. Parental KAB leads to immunization decisions. HCWs were also noted to be the trusted sources of immunization information. Further research can be conducted on how to improve parents' perceptions of immunization and immunization practices.

Understanding hepatitis B vaccination willingness in the adult population in Indonesia: a survey among outpatient and healthcare workers in community health centers

Aim

This study aimed to assess factors associated with the willingness to be vaccinated against hepatitis B among Indonesia’s adult population, considering cultural and geographic differences by analysing the two provinces of Aceh and Yogyakarta.

Subject and methods

An institution-based cross-sectional survey was conducted in 16 community health centres. A multivariable logistic regression model stratified by province was employed to assess variables associated with the willingness to receive hepatitis B vaccination.

Results

We found that participants from Yogyakarta more often had a higher knowledge and risk perception of hepatitis B and were more often willing to get vaccinated than participants from Aceh. We also found that a high-risk perception of hepatitis B infection was associated with the willingness to be vaccinated against hepatitis B in participants from both Aceh and Yogyakarta. Furthermore, in Yogyakarta, a fair and high knowledge of hepatitis B infection and vaccination, being female, and having health insurance covering hepatitis B vaccination costs were associated with the willingness to be vaccinated. In Aceh, health care workers in high-risk units for hepatitis B had a higher willingness to be vaccinated than those who were not high-risk health care workers.

Conclusion

Given the different factors associated with the willingness to be vaccinated against hepatitis B in Aceh and Yogyakarta, this study also highlights the need of a locally adjusted, culture-based approach to improve the hepatitis B vaccination programme.

Attitudes and personal beliefs about the COVID-19 vaccine among people with COVID-19: a mixed-methods analysis

Background

Little research is available regarding vaccination attitudes among those recently diagnosed with COVID-19. This is important to investigate, particularly among those experiencing mild-to-moderate illness, given the ongoing need to improve uptake of both initial vaccine series and booster doses, and the divergent ways such an experience could impact attitudes.

Methods

From September 3 – November 12, 2021, all patients enrolled in Baylor Scott & White’s “COVID-19 Digital Care Journey for Home Monitoring” were invited to participate in an online survey that included questions about vaccination status and attitudes/opinions regarding COVID-19 and the COVID-19 vaccines. Following an item asking about accordance of COVID-19 vaccination with religious/personal beliefs, participants were asked to describe those beliefs and how they relate to taking/not taking the vaccine.

Results

Of 8,075 patients age ≥ 18 years diagnosed with COVID-19 and invited to join the survey during the study period, 3242 (40.2%) were fully vaccinated. In contrast, among the 149 who completed the questionnaire, 95(63.8%) reported full vaccination. Responses differed significantly between vaccination groups. The vaccinated group strongly agreed that COVID-19 is a major public health problem, the vaccines are safe and effective, and their decision to vaccinate included considering community benefit. The unvaccinated group responded neutrally to most questions addressing safety and public health aspects of the vaccine, while strongly disagreeing with statements regarding vaccine effectiveness and other preventative public health measures. The vaccinated group strongly agreed that taking the vaccine accorded with their religious/personal beliefs, while the unvaccinated group was neutral. In qualitative analysis of the free text responses “risk perception/calculation” and “no impact” of religious/personal beliefs on vaccination decisions were frequent themes/subthemes in both groups, but beliefs related to the “greater good” were a strong driver among the vaccinated, while statements emphasizing “individual choice” were a third frequent theme for the unvaccinated.

Conclusion

Our results show that two of the three factors that drive vaccine hesitancy (complacency, and lack of confidence in the vaccines) are present among unvaccinated adults recently diagnosed with COVID-19. They also show that beliefs emphasizing the importance of the greater good promote public health participation.

Supplementary information

The online version contains supplementary material available at 10.1186/s12889-022-14335-x.

Organisational and Structural Drivers of Childhood Immunisation in the European Region: A Systematic Review

Despite the implementation of widespread vaccination programs, the European Health Systems continue to experience care challenges attributable to organizational and structural issues. This study aimed to review the available data on aspects within the organizational and structural domains that might impact vaccination coverage. We searched a comprehensive range of databases from 1 January 2007 to 6 July 2021 for studies that reported quantitative or qualitative research on interventions to raise childhood vaccine coverage. Outcome assessments comprised organizational and structural factors that contribute to vaccine concern among pediatric parents, as well as data reported influencing the willingness to vaccinate. To analyze the risk of bias, the Ottawa, JBI’s (Joanna Briggs Institute) critical appraisal tool, and Amstar quality assessment were used accordingly. The inclusion criteria were met by 205 studies across 21 articles. The majority of the studies were conducted in the United Kingdom (6), the European Union (3), and Italy (3). A range of interventions studied in primary healthcare settings has been revealed to improve vaccination coverage rates including parental engagement and personalization, mandatory vaccination policies, program redesign, supply chain design, administering multiple/combination vaccines, improved vaccination timing and intervals, parental education and reminders, surveillance tools and Supplemental Immunisation Activity (SIA), and information model.

Mother’s Media Use and Children’s Vaccination Status in Indonesia: A Community-Based Cross-Sectional Study

Exposing appropriate information to mothers is a key factor for children’s immunization status. This study aims to assess the influence of mothers’ media use on their children’s vaccination status in Indonesia, using the 2017 Indonesia Demographic Health Survey data. A multilevel multinomial logistic regression model was employed. Mothers who used media irregularly and regularly had higher odds of having partially vaccinated children (vs unvaccinated) than mothers who never used media with adjusted odds ratio (aOR): 1.74; 95% Confidence interval (95% CI): 1.06-2.85 and aOR: 1.48; 95% CI: 1.02-2.16, respectively. Furthermore, they had higher odds of having a fully vaccinated child (vs unvaccinated) (aOR: 1.86; 95% CI: 1.12-3.08 for irregular media use and aOR: 2.41; 95% CI: 1.64-3.53 for regular media use vs. no media use). Our findings suggest that mothers’ media use could positively affect their children’s vaccination status by increasing mothers’ knowledge about children’s vaccination.

Parent's risk preference and childhood vaccination: evidence from Indonesia

A vaccines advisory group to the World Health Organization (WHO) identified complacency, inconvenience in accessing vaccines, and lack of confidence as key reasons for hesitancy. In childhood vaccination, the decision to take a vaccine relies on parents' decisions. Our study explored the relationship between parents' risk aversion and complete childhood vaccination status to identify whether demand contributes to vaccine hesitancy in Indonesia. We examined risk aversion using data from the fifth-wave Indonesian Family Life Survey (IFLS), focusing on parents with extreme risk aversion or fear of uncertainty. The logistic regression shows a negligible relationship between parents' risk aversion and childhood vaccination; nevertheless, parents who fear uncertainty tend to avoid vaccination. The results of this study encourage public health professionals and policymakers to properly design vaccine campaigns with careful consideration of the risk preference dimension of the targeted beneficiaries.

Parents' Knowledge, Attitude, and Practice on Childhood Vaccination During the COVID-19 Pandemic in Indonesia

BACKGROUND

Vaccination is known to have an enormous impact on improving child health. In Indonesia, the government has included several vaccines in the national immunization program.

OBJECTIVE

This study aimed to investigate parents' knowledge, attitude, and practice on childhood immunization during the COVID-19 pandemic in Indonesia.

METHODS

A valid and reliable questionnaire was delivered to approximately 276 parents in Jakarta and Bandung, representing the epicenter of the pandemic. This study was conducted from June 2020 to February 2021. The correlations between parents' knowledge, attitudes, and practice with the characteristics of the respondents were investigated. In addition, multiple regression analysis was performed to identify the variables associated with good vaccination practice.

RESULTS

The results showed that the mean scores of parents' knowledge, attitude, and practice on childhood vaccinations were 7.22 (± 1.30) out of 9 points, 3.93 (± 0.31) out of 4 points, and 3.59 (± 0.97) out of 5 points, respectively. Respondents graduated from university were more knowledgeable than those graduated from senior high school (p-value <0.05). Employed participants had better scores in knowledge and practice, compared to unemployed participants (p-value <0.05).

CONCLUSION

In conclusion, this study found positive correlations between participants' knowledge and attitude, knowledge and practice, and attitude and practice on childhood vaccination during the COVID-19 pandemic in Indonesia.

Factor Influencing Vaccine Rejection of Complete Basic Immunization in Indonesia

AIM: This study aims to identify psychological factors against vaccine rejection in Indonesia. The study also provides a review of the group of different factors on psychological factors in social media. METHODS: This study uses secondary data sourced from Facebook, Twitter, YouTube and Instagram about vaccines rejection from 2018 to 2019. That text is labeled based on seven psychological factors that influence vaccine rejection. The factor analysis method is used to determine the relationship between vaccine rejection and psychological factors. RESULTS: Dimension 1 focused on individual and group influences, where the correlation value between factors such as vaccine misinformation, health worker trust, perception of side effect is 0.906 (>0.5). Dimension 2 used different factors such as trust in the goverment, negative opinion about vaccine efficacy, and social influence as contextual/environmental influencers,with a correlation value of 0.866 (>0.5). Meanwhile, Dimension 3 with general perception is a factor in vaccine and vaccination specific problems with a correlation value of 0.940 (>0.5). CONCLUSION: Psychological factors are mainly associated with vaccine rejection. Stakeholders need to observe these factors in identifying conditions for childhood vaccines rejection posted on social media in Indonesia.

Medical students' positive perception towards vaccination is strongly correlated to protective diphtheria antibody after Td vaccination

Negative perception towards vaccination is one of the reasons for low coverage of diphtheria immunization in Indonesia. Perception, which is difficult to change, is related to stress level, possibly influences outcome of diseases, and also vaccination. This study aims to identify the correlation between perception of diphtheria vaccination and antibody response after vaccination. This study used secondary data from two unpublished studies on 30 medical interns in Hasan Sadikin Hospital, Bandung, West Java, after diphtheria outbreak, from June to July 2019. Antibody level after diphtheria emergency vaccination was measured using ELISA and perception towards vaccination was measured using a questionnaire. Perception towards vaccination was expressed as perception score and was divided into 4 components: perceived threat, benefit, barrier, and cues to action. Higher perception score indicated more positive perception towards vaccination. Diphtheria antibody level was grouped into reliable protection (≥0,10 IU/mL) or unreliable protection (<0,10 IU/mL). Statistical correlation analysis was done with GraphPad Prism version 7.0. Most of our subjects were female. Median age was 22 (20-24) years old. Median time elapsed between vaccination date and measurement of antibody level was 18 (6-18) months. Median antibody level was 0,28 (0,09-3,47) IU/mL. Twenty-three subjects (82,1%) had reliable protection. Subjects with reliable protection had more positive perception compared to unreliable protection (perception score 80,6 ​± ​5,4 vs 69,0 ​± ​1,8, p ​= ​0,0001). Subjects with reliable protection had less perceived barrier for vaccination (15,6 ​± ​2,1 vs 13,0 ​± ​1,8, p ​= ​0,0083). Perception score showed strong, positive correlation to reliable protection against diphtheria (R ​= ​0,705, p ​< ​0,001). Perceived barrier and threat showed positive correlation to reliable protection (R ​= ​0,489, p ​= ​0,008 and R ​= ​0,402, p ​= ​0,034). In conclusion, perception towards diphtheria vaccination is strongly correlated to protective antibody. Improving perception of vaccination are needed to overcome vaccine hesitancy.

Factors that influence parents' and informal caregivers' views and practices regarding routine childhood vaccination: a qualitative evidence synthesis

BACKGROUND

Childhood vaccination is one of the most effective ways to prevent serious illnesses and deaths in children. However, worldwide, many children do not receive all recommended vaccinations, for several potential reasons. Vaccines might be unavailable, or parents may experience difficulties in accessing vaccination services; for instance, because of poor quality health services, distance from a health facility, or lack of money. Some parents may not accept available vaccines and vaccination services. Our understanding of what influences parents' views and practices around childhood vaccination, and why some parents may not accept vaccines for their children, is still limited. This synthesis links to Cochrane Reviews of the effectiveness of interventions to improve coverage or uptake of childhood vaccination.

OBJECTIVES

- Explore parents' and informal caregivers' views and practices regarding routine childhood vaccination, and the factors influencing acceptance, hesitancy, or nonacceptance of routine childhood vaccination. - Develop a conceptual understanding of what and how different factors reduce parental acceptance of routine childhood vaccination. - Explore how the findings of this review can enhance our understanding of the related Cochrane Reviews of intervention effectiveness.

SEARCH METHODS

We searched MEDLINE, Embase, CINAHL, and three other databases for eligible studies from 1974 to June 2020.

SELECTION CRITERIA

We included studies that: utilised qualitative methods for data collection and analysis; focused on parents' or caregivers' views, practices, acceptance, hesitancy, or refusal of routine vaccination for children aged up to six years; and were from any setting globally where childhood vaccination is provided.

DATA COLLECTION AND ANALYSIS

We used a pre-specified sampling frame to sample from eligible studies, aiming to capture studies that were conceptually rich, relevant to the review's phenomenon of interest, from diverse geographical settings, and from a range of income-level settings. We extracted contextual and methodological data from each sampled study. We used a meta-ethnographic approach to analyse and synthesise the evidence. We assessed methodological limitations using a list of criteria used in previous Cochrane Reviews and originally based on the Critical Appraisal Skills Programme quality assessment tool for qualitative studies. We used the GRADE-CERQual (Confidence in the Evidence from Reviews of Qualitative research) approach to assess our confidence in each finding. We integrated the findings of this review with those from relevant Cochrane Reviews of intervention effectiveness. We did this by mapping whether the underlying theories or components of trial interventions included in those reviews related to or targeted the overarching factors influencing parental views and practices regarding routine childhood vaccination identified by this review.

MAIN RESULTS

We included 145 studies in the review and sampled 27 of these for our analysis. Six studies were conducted in Africa, seven in the Americas, four in South-East Asia, nine in Europe, and one in the Western Pacific. Studies included urban and rural settings, and high-, middle-, and low-income settings. Many complex factors were found to influence parents' vaccination views and practices, which we divided into four themes. Firstly, parents' vaccination ideas and practices may be influenced by their broader ideas and practices surrounding health and illness generally, and specifically with regards to their children, and their perceptions of the role of vaccination within this context. Secondly, many parents' vaccination ideas and practices were influenced by the vaccination ideas and practices of the people they mix with socially. At the same time, shared vaccination ideas and practices helped some parents establish social relationships, which in turn strengthened their views and practices around vaccination. Thirdly, parents' vaccination ideas and practices may be influenced by wider political issues and concerns, and particularly their trust (or distrust) in those associated with vaccination programmes. Finally, parents' vaccination ideas and practices may be influenced by their access to and experiences of vaccination services and their frontline healthcare workers. We developed two concepts for understanding possible pathways to reduced acceptance of childhood vaccination. The first concept, 'neoliberal logic', suggests that many parents, particularly from high-income countries, understood health and healthcare decisions as matters of individual risk, choice, and responsibility. Some parents experienced this understanding as in conflict with vaccination programmes, which emphasise generalised risk and population health. This perceived conflict led some parents to be less accepting of vaccination for their children. The second concept, 'social exclusion', suggests that some parents, particularly from low- and middle-income countries, were less accepting of childhood vaccination due to their experiences of social exclusion. Social exclusion may damage trustful relationships between government and the public, generate feelings of isolation and resentment, and give rise to demotivation in the face of public services that are poor quality and difficult to access. These factors in turn led some parents who were socially excluded to distrust vaccination, to refuse vaccination as a form of resistance or a way to bring about change, or to avoid vaccination due to the time, costs, and distress it creates. Many of the overarching factors our review identified as influencing parents' vaccination views and practices were underrepresented in the interventions tested in the four related Cochrane Reviews of intervention effectiveness.

AUTHORS' CONCLUSIONS

Our review has revealed that parents' views and practices regarding childhood vaccination are complex and dynamic social processes that reflect multiple webs of influence, meaning, and logic. We have provided a theorised understanding of the social processes contributing to vaccination acceptance (or not), thereby complementing but also extending more individualistic models of vaccination acceptance. Successful development of interventions to promote acceptance and uptake of childhood vaccination will require an understanding of, and then tailoring to, the specific factors influencing vaccination views and practices of the group(s) in the target setting. The themes and concepts developed through our review could serve as a basis for gaining this understanding, and subsequent development of interventions that are potentially more aligned with the norms, expectations, and concerns of target users.

Scared, powerless, insulted and embarrassed: hesitancy towards vaccines among caregivers in Cavite Province, the Philippines

Background

Several studies have highlighted that vaccine hesitancy (VH) is among the most important threats to global health, especially in low- and middle-income countries, including the Philippines. However, there is a dearth of literature exploring family experiences of—or concerns related to—childhood vaccinations that gives voice to vaccine hesitant caregivers (VHCs) of small children. Here, we present insights from VHCs from the Philippines.

Methods

This research draws on in-depth interviews (IDIs) with 44 VHCs who had previously delayed or refused vaccination for their children in rural and urban communities in Cavite Province, the Philippines. Amid the COVID-19 pandemic, we conducted IDIs via an online platform of the respondents’ choosing (ie, Facebook messenger call, Skype and Zoom). All interviews were recorded, transcribed, translated and analysed drawing from the tenets of constructivist grounded theory. We use the social ecological model to structure our results.

Results

Among the reasons for delay or refusal of childhood vaccinations, a fear of side effects emerged as the most salient concern, exacerbated by previous negative experiences (including trauma) from a dengue vaccine controversy in 2017. Respondents cited the dengue vaccine controversy as they expressed reluctance (regarding any new vaccines) and suspicion (towards school-based vaccination, the distribution channel used for the dengue vaccine). Heads of households opposing vaccines, perceptions that vaccines are non-essential and influences from the social and traditional media or neighbours contributed to further refusal and delay. Upon probing, VHCs recounted health system concerns particularly with regards to healthcare workers who are sometimes unable to answer their questions and can be dismissive or disrespectful regarding caregivers’ concerns.

Conclusion

Understanding VH from the lens of VHCs highlights pathways for interventions to regain trust and bolster confidence towards vaccines. Our findings may serve as linchpins in the development of VH interventions aiming at changing behaviour on a population scale.

Acceptance of a COVID-19 Vaccine in Southeast Asia: A Cross-Sectional Study in Indonesia

Introduction: Several vaccine candidates are being clinically tested in response to the 2019 coronavirus disease (COVID-19) pandemic. This study was conducted to assess the acceptance of a 50 or 95% effective COVID-19 vaccine, when it becomes available in southeast Asia, among the general population in Indonesia. Methods: A cross-sectional online survey was conducted between March 25 and April 6, 2020. Participants were asked if they would accept a free vaccine which was 95 or 50% effective. Using a logistic regression model, we assessed the associations between sociodemographic characteristics, exposure to COVID-19 information, or perceived risk of infection with acceptance of a hypothetical COVID-19 vaccine. Results: Among 1,359 respondents, 93.3% of respondents (1,268/1,359) would like to be vaccinated for a 95% effective vaccine, but this acceptance decreased to 67.0% (911/1,359) for a vaccine with 50% effectiveness. For a 95% effective vaccine, being a healthcare worker and having a higher perceived risk of COVID-19 infection were associated with higher acceptance, adjusted odds ratio (aOR): 2.01; 95%CI: 1.01, 4.00 and aOR: 2.21; 95%CI: 1.07, 4.59, respectively; compared to civil servants, being retired was associated with less acceptance (aOR: 0.15; 95%CI: 0.04, 0.63). For a 50% effective vaccine, being a healthcare worker was also associated with greater acceptance, aOR: 1.57; 95%CI: 1.12, 2.20. Conclusion: Acceptance of a COVID-19 vaccine was highly influenced by the baseline effectiveness of the vaccine. Preparing the general population to accept a vaccine with relatively low effectiveness may be difficult.

Acceptance of a COVID-19 Vaccine in Southeast Asia: A Cross-Sectional Study in Indonesia

Introduction: Several vaccine candidates are being clinically tested in response to the 2019 coronavirus disease (COVID-19) pandemic. This study was conducted to assess the acceptance of a 50 or 95% effective COVID-19 vaccine, when it becomes available in southeast Asia, among the general population in Indonesia. Methods: A cross-sectional online survey was conducted between March 25 and April 6, 2020. Participants were asked if they would accept a free vaccine which was 95 or 50% effective. Using a logistic regression model, we assessed the associations between sociodemographic characteristics, exposure to COVID-19 information, or perceived risk of infection with acceptance of a hypothetical COVID-19 vaccine. Results: Among 1,359 respondents, 93.3% of respondents (1,268/1,359) would like to be vaccinated for a 95% effective vaccine, but this acceptance decreased to 67.0% (911/1,359) for a vaccine with 50% effectiveness. For a 95% effective vaccine, being a healthcare worker and having a higher perceived risk of COVID-19 infection were associated with higher acceptance, adjusted odds ratio (aOR): 2.01; 95%CI: 1.01, 4.00 and aOR: 2.21; 95%CI: 1.07, 4.59, respectively; compared to civil servants, being retired was associated with less acceptance (aOR: 0.15; 95%CI: 0.04, 0.63). For a 50% effective vaccine, being a healthcare worker was also associated with greater acceptance, aOR: 1.57; 95%CI: 1.12, 2.20. Conclusion: Acceptance of a COVID-19 vaccine was highly influenced by the baseline effectiveness of the vaccine. Preparing the general population to accept a vaccine with relatively low effectiveness may be difficult.