Childhood Vaccination Research Articles

Comprehensive periodic health evaluations of 454 Norwegian Paralympic and Olympic athletes over 8 years: what did we learn?

ObjectiveA periodic health evaluation (PHE) is a comprehensive and multidisciplinary investigation of athlete health widely used in elite sport, but its contents and benefits can be questioned. This study aimed...

Childhood vaccination among Polish immigrants in Norway: a qualitative study

BackgroundConfidence in childhood vaccination is high in Norway and the Norwegian Childhood Immunization Programme (NCIP) achieves high overall coverage rates. However, lower coverage has been observed for some immigrant groups, including Polish immigrants who represent the largest immigrant group in Norway. Anti-vaccine sentiments and increased refusal of mandatory childhood vaccination has been on the rise in Poland, but it is unknown whether such attitudes also apply to Polish immigrants in Norway, as they experience a different vaccination policy and perhaps also different attitudes to vaccines. This qualitative study aims to explore attitudes towards childhood vaccination in Norway among Polish immigrants.MethodsWe interviewed 15 Polish parents living in Norway in 2022. We recruited the participants by purposive sampling and analyzed the interviews by reflexive thematic analysis.ResultsThree themes were identified: views of childhood vaccination, vaccine hesitancy, and differences in childhood vaccination between Poland and Norway. Overall, the participants favored childhood vaccination and viewed most of the vaccines included in the NCIP as safe and reliable. Human papilloma virus, meningococcal and pneumococcal vaccines were declined by some of the parents. Comparisons of childhood vaccination in Poland and Norway was evident in many of the interviews, especially among parents whose children had received vaccines in both countries. The participants were well acquainted with the NCIP, favored voluntary childhood vaccination, and the majority expressed a high level of trust in Norwegian health authorities.ConclusionsPolish immigrants to Norway generally expressed positive views about childhood vaccination. Non-vaccination was related to lack of knowledge and/or unfamiliarity with certain vaccines and not with anti-vaccine sentiments or conspiracy theories. The study highlights how parents’ knowledge, in combination with norms and trends from both birth country and country of residence, influence parents’ decision making about vaccination.

Use of narratives to enhance childhood vaccine acceptance: Results of an online experiment among Canadian parents

ABSTRACT Identifying effective interventions to promote children’s vaccination acceptance is crucial for the health and wellbeing of communities. Many interventions can be implemented to increase parental awareness of the benefits of vaccination and positively influence their confidence in vaccines and vaccination services. One potential approach is using narratives as an intervention. This study aims to evaluate the effects of a narrative-based intervention on parents’ attitudes and vaccination intentions. In a pre-post experiment, 2,000 parents of young children recruited from an online pan-Canadian panel were randomly exposed to one of the three videos presenting narratives to promote childhood vaccination or a control condition video about the importance and benefits of physical activity in children. Pre-post measures reveal a relatively modest but positive impact of the narratives on parents’ attitudes and intention to vaccinate their child(ren). The results also suggest that narratives with more emotional content may be more effective in positively influencing vaccine attitudes than the more factual narrative. Using narratives to promote vaccination can positively influence parents’ views and intentions toward childhood vaccines, but research is still required to identify the best components of such interventions.

Health education as a strategy for encouraging children's vaccination: rapid review

Introduction: Although vaccines have significantly improved the lives of the world's population since their implementation, there has been recent stagnation and, in some cases, even a reversal of previously achieved gains. Aim: To summarize the evidence on how to use health education to encourage the vaccination of children. Outlining: Rapid review, guided by the question "How to use health education to encourage the vaccination of children?" carried out in 2023, using two databases and an electronic library. The searches yielded 2,666 documents, of which 12 articles were selected for data extraction, summarization, and discussion. Results: The community and the home were the main places described for interventions. Fathers, mothers, and guardians/caregivers of children were the audience most mentioned for interventions. Educational instruments, such as booklets, leaflets, and health manuals, were the most used. The most frequent strategies were conventionally transmitting information in the waiting room, teaching during care or home visits, and using or making educational instruments available. Implications: The study clarified how to use health education to encourage the vaccination of children, detailing the intervention locations, the target audience, the necessary instruments, and adequate strategies.

The Evaluation of human papillomavirus vaccination coverage for school aged girls in Badung District, Bali, Indonesia, 2016 – 2018

Background and purpose: Since 2016, Badung District, Bali has implemented a free HPV vaccination program for school children, with vaccination coverage reported to be over 90% in 2016-2018. This study aims to objectively assess the coverage of HPV vaccination among school children in Badung District. Methods: This survey used a cross-sectional design that conducted between March and June 2019. Sample selection was done by systematic random sampling, following the WHO guidelines. A total of 216 families met the sample criteria, with a total of 249 children from all families. Respondents in this study were eligible girls' mothers or families who knew the child's vaccination history. Variables of this study were sociodemographic characteristics of respondents and children, HPV vaccination recall and HPV child vaccination validation. The data collected were analyzed descriptively to calculate the coverage of recall and validation of HPV vaccination. Results: The majority of respondents were mothers (70.83%) with a high school education (51.85%). The median age was 43 years (IQR=8 years). Each family had a mean of 1.15 eligible children (SD=0.39). Of the 249 children, most were aged 16-19 years (43.37%), with age at vaccination mostly ≤12 years (46.52%). HPV vaccination coverage by recall was 82.32% (95%CI: 77.56-87.09), with HPV vaccination coverage by validation was 76.59% (95%CI: 70.74-82.43). Conclusion: After validation, vaccination coverage was lower than vaccination coverage by recall. The health office needs to improve the vaccination registration system, in particular the uniformity of registration and record keeping to ensure proper traceability of vaccination history.

“In working with vaccines, you have the impression that you're working with gold, and that it's a protected field”: A qualitative study on childhood vaccination decision-making in crisis-affected settings

BackgroundThe governance of childhood vaccination in crisis-affected populations presents distinctive and intricate challenges and has been criticized for being inadequate. In this study, our aim was to investigate the existing practices related to decision-making on vaccination in crisis-affected settings and develop practical suggestions for enhancing these. MethodsWe followed a qualitative research approach, conducting 31 remote semi-structured interviews with individuals involved in humanitarian vaccination efforts and stakeholders operating at global, regional, and national levels. We used a thematic approach using a mix of inductive and deductive coding to analyse the data while applying the Governance Analytical Framework (GAF). ResultsOur research indicates that decision-making in crisis-affected settings suffers from a lack of structure, documentation, and transparency. Participants highlighted the presence of diverse and conflicting agendas among different stakeholders and the insufficiency of timely, reliable data crucial for effective decision-making. As solutions, participants recommended improved coordination among stakeholders and emphasized the need for meaningful engagement of local actors. ConclusionThe study uncovered a fragmented, disorganised and complex governance landscape of vaccination services in crisis-affected settings spanning multiple levels and involving various actors. To improve this landscape, it is crucial to intensify efforts to ensure fairness, accountability and effectiveness.

Serological responses to vaccination in children exposed in utero to ustekinumab or vedolizumab: cross-sectional analysis of a prospective multicentre cohort

Evidence on serological responses to vaccination in children exposed to ustekinumab (UST) or vedolizumab (VDZ) in utero is lacking. This multicentre prospective study aimed to assess the impact of prenatal exposure to UST or VDZ due to maternal inflammatory bowel disease (IBD) on serological responses to vaccination and other immunological parameters in exposed children. Children aged ≥ 1 year who were exposed in utero to UST or VDZ and completed at least 1-year of mandatory vaccination were included. We assessed the serological response to vaccination (non-live: tetanus, diphtheria, and Haemophilus influenzae B; live: mumps, rubella, and measles), whole blood count, and immunoglobulin levels. The control group comprised unexposed children born to mothers without IBD. A total of 23 children (median age, 25 months) exposed to UST (n = 13) or VDZ (n = 10) and 10 controls (median age, 37 months) were included. The serological response to vaccination was comparable between the UST and VDZ groups and controls, with an adequate serological response rate of ≥ 80%. Only children exposed to UST showed a slightly reduced serological response to mumps (67% vs. 86% in controls), whereas all children exposed to VDZ showed an adequate response. The majority of the exposed children had normal levels of individual immunoglobulin classes, similar to the controls. No severe pathology was observed in any of the children.Conclusion: Despite the limited sample size, our findings suggest that in utero exposure to VDZ or UST does not significantly impair the vaccine response or broader immunological parameters in exposed children.What is known:• Treatment with anti-TNF inhibitors during pregnancy does not appear to affect serologic response to vaccination in exposed children.• Evidence on the efficacy of vaccination in children exposed to ustekinumab or vedolizumab in utero is almost lacking.What is new:• Our findings suggest that in utero exposure to ustekinumab or vedolizumab does not significantly affect the serological responses to common childhood non-live (tetanus, Haemophilus influenzae B, diphtheria) and live vaccines (measles, mumps, rubella).• No major adverse effects on overall immunological health were observed in children exposed in utero to ustekinumab or vedolizumab.

Physicians’ perspectives on COVID-19 vaccinations for children: a qualitative exploration in Ontario, Canada

ObjectivesParents’ decisions to vaccinate their children against COVID-19 are complex and often informed by discussions with primary care physicians. However, little is known about physicians’ perspectives on COVID-19 vaccinations for...

Sustained chronic inflammation and altered childhood vaccine responses in children exposed to Zika virus

Congenital Zika virus (ZIKV) infection leads to severe newborn abnormalities, but its long-term impact on childhood immunity is not well understood. This study aims to investigate the serum proteomics in children exposed to ZIKV during pregnancy to understand potential immunological consequences during early childhood. The study included ZIKV-exposed infants (ZEI) at birth (n=42) and children exposed to ZIKV (ZEC) at two years of age (n=20) exposed to ZIKV during pregnancy, as well as healthy controls. Serum proteomic analysis was performed on these groups to assess inflammation and immune profiles. Additionally, antibody titres against two common childhood vaccines, DTaP and MMR, were measured in healthy controls (n=50) and ZEC (n=92) to evaluate vaccine-induced immunity. Results showed elevated inflammation in ZEI with birth abnormalities. Among ZEC, despite most having normal clinical outcomes at two years, their serum proteomics indicated a bias towards Th1-mediated immune responses. Notably, ZEC displayed reduced anti-Diphtheria toxin and anti-Clostridium tetani IgG levels against DTaP and MMR vaccines. They also exhibited lower antibody titres particularly against Th2-biased DTaP vaccines, but not Th1-biased MMR vaccines. In conclusion, the study highlights the long-term immunological consequences of congenital ZIKV exposure. Heightened inflammation was observed in ZEI with abnormalities at birth, while ZEC maintained a chronic Th1-biased immune profile. The impaired response to Th2-biased vaccines raises concerns about lasting effects of ZIKV exposure on immune responses. Consequently, there is a need for continued longitudinal clinical monitoring to identify potential immune-related complications arising from prenatal exposure to ZIKV. This work was partially funded by the National Institute of Allergy and Infectious Diseases (NIAID) and National Institute of Dental and Craniofacial Research (NIDCR).

Contribution of water, sanitation, hygiene and basic education to reduce under-five mortality in Sudan

ABSTRACT Until 2015, the under-five mortality rate (U5MR) in Sudan was 65.9 per 1,000 livebirths, higher than the MDG4 target, and it has to be reduced by 5.04% per year from its 2020 level to achieve the SDG3.2 by 2030. This target cannot be achieved without improvements in access to safe drinking water (ASW), sanitation and hygiene (ISF) (WASH) and basic education. An estimated autoregressive distributed lag bounds test model confirms a long-run equilibrium relationship between U5MR, WASH, basic education, economic growth and health care. In the short run, U5MR decelerates itself with a coefficient of 0.56. Sanitation and basic education significantly reduce U5MR. Collectively, health care and economic growth affect U5MR adversely. In the long run, declines of U5MR are driven respectively by access to sanitation, hygiene and basic education (a factor of 1.79), economic growth (a factor of 0.21), and health care (a factor of 0.18). The study recommends promotion of access to safe drinking water with investments in sanitation and hygiene of 32 million $US annually between 2020 and 2030, in order to meet the SDG3.2 in Sudan. Skilled physicians and full vaccination of children can be more effective in reducing U5MR, dependent on progress in safe WASH.

Exploring Parental Attitudes and Perceptions Regarding Childhood Vaccinations in Greece: A Study Within the Framework of the National Health Examination Survey (EMENO).

Vaccinations have reduced illnesses and mortality rates globally, yet negative attitudes and uncertainty about them hinder their acceptability and efficacy. The study aims to document Greek parents' immunization perceptions and risk factors. Spanning 2014-2017, 447 parents (68% mothers) who participated in the Greek Health Examination Survey EMENO (National Survey of Morbidity and Risk Factors) completed an interview-delivered questionnaire. Attitudes were categorized into three groups: absolutely positive, positive, and negative. Absolutely positive attitudes included positive responses to all five statements in favor of vaccination and negative responses to the two statements against vaccination. Negative attitudes included positive responses to either one or both statements against vaccination and negative responses to all five statements in favor of vaccination.. All other participants were categorized as having a positive attitude. Skepticism towards vaccinations was classified into skeptical and non-skeptical groups based on responses to five statements implying uncertainty or skepticism. Participants were considered skeptical if they provided positive responses to at least three of these statements, and non-skeptical if they had none or up to two positive responses.The statistical analysis accounted for the study design whereas inverse probability weighting was used to adjust for non-response and multiple imputations were employed to impute missing values. The components of parental attitude and vaccine skepticism were identified using weighted multinomial logistic regression and logistic regression, respectively. In total, 16.6% were classified as having absolutely positive attitudes towards vaccinations whereas 42.1% were skeptical of vaccines. Of all participants, 96.0% agreed that vaccinations are essential for their child's well-being and adhere to scientific recommendations. However, concerns were also mentioned, with 26.2% worrying about potential adverse effects, and 21.6% believing it is better to acquire immunity through illness rather than vaccination. Positive participants, compared to absolutely positive ones, were more likely to be of Greek origin (adjusted relative rate ratio (aRRR): 3.35; 95% CI: 1.53-7.30) and living in semi-urban areas (aRRR: 4.84; 95% CI: 1.77-13.29). Negative participants, in contrast, were more likely to have higher education (aRRR: 2.98; 95% CI: 1.05-8.44) but also to live in semi-urban areas (aRRR: 6.43; 95% CI: 1.69-24.56). Furthermore, parents of Greek origin had significantly higher odds of being skeptical towards vaccination (adjusted Odds Ratio (aOR): 2.86; 95% CI: 1.36-5.98), while married or cohabiting parents had lower odds of being skeptical compared to single parents (aOR: 0.60; 95% CI: 0.35-1.06). While parents in this study recognize the importance of childhood immunizations, there is a widespread presence of negative attitudes and skepticism that can have a detrimental impact on vaccination rates.

Pediatric nurses' acceptance and attitudes toward COVID-19 vaccines for their children at Assiut University Children Hospital: A cross-sectional study

BackgroundChildren's vaccination mainly depends on their parents' decisions. Therefore, it is important to understand parents' acceptance and attitudes toward vaccinating their children against COVID-19. AimThe study aimed to assess the pediatric nurses' acceptance and attitudes toward COVID-19 vaccines for their children at Assiut University Children Hospital. Materials and methodA cross-sectional descriptive design was used on a convenience sample of 270 nurses who worked at Assiut University Children Hospital. ToolsTool one involved the demographic characteristics of pediatric nurses and their children. Tool two consisted of pediatric nurses' acceptance and attitudes toward COVID-19 vaccines for their children: ResultsThe results indicated that 79.3% of pediatric nurses had higher acceptance of vaccines and immunization of their children. Results also revealed that 80.0% of pediatric nurses had positive attitudes toward vaccines and their children's immunizations. ConclusionIt was concluded that most of pediatric nurses had high acceptance and positive attitudes toward vaccines and immunization of their children. Also, it was clarified that there was a positive statistically significant correlation between nurses' acceptance of vaccines and immunization of their children and their attitudes. RecommendationsContinuing education and tailored intervention should be implemented to correct misinformation and negative conceptions about the safety of vaccines for children.

Regional disparities in BCG vaccination coverage and tuberculosis incidence in infants among Brazilian states.

Bacillus Calmette-Guerin (BCG) vaccination and tuberculosis (TB) incidence in children under 1 year of age are critical public health indicators in Brazil. The coronavirus disease 2019 pandemic disrupted vaccination coverage (VC), potentially impacting TB incidence. Understanding regional disparities in VC and TB incidence can inform targeted interventions. We conducted an observational and ecological study using BCG vaccination data (2019-21) and TB incidence (2020-22) for all births in Brazil. Data were collected from public health databases, stratified by state, and analyzed using descriptive and analytical statistics to explore VC and TB incidence. Between 2019 and 2021, average BCG VC was 79.59%, with significant variation among states (P < .001). Only four states achieved minimum recommended coverage (>90%). TB incidence varied significantly among states (P = .003). There was a notable decline in VC from 2019 (90.72%) to 2021 (78.67%) (P < .001). This study highlights regional disparities in BCG VC and TB incidence among Brazilian states. Lower VC post-pandemic may increase TB incidence, requiring targeted interventions in states with inadequate coverage. The findings underscore the importance of sustaining vaccination programs amidst public health crises and implementing strategies to enhance access and uptake.

Immunogenicity, safety, and efficacy of a tetravalent dengue vaccine in children and adolescents: an analysis by age group.

Dengue is an increasing threat to global health. This exploratory analysis evaluated the immunogenicity, safety, and vaccine efficacy (VE) of a live-attenuated tetravalent dengue vaccine (TAK-003) in participants enrolled in the phase 3 DEN-301 trial (NCT02747927), stratified by baseline age (4-5 years; 6-11 years; or 12-16 years). Participants were randomized 2:1 to receive 2 doses of TAK-003, administered 3 months apart, or placebo. Dengue serostatus was evaluated at enrolment. VE against virologically-confirmed dengue (VCD) and hospitalized VCD; immunogenicity (geometric mean titers; GMTs); and safety were evaluated per age group through ∼4 years post-vaccination. VE against VCD across serotypes was 43.5% (95% confidence interval: 25.3%, 57.3%) for 4-5 year-olds; 63.5% (56.9%, 69.1%) for 6-11 year-olds, and 67.7% (57.8%, 75.2%) for 12-16 year-olds. VE against hospitalized VCD was 63.8% (21.1%, 83.4%), 85.1% (77.1%, 90.3%), and 89.7% (77.9%, 95.2%), for the three age groups, respectively. GMTs remained elevated against all four serotypes for ∼4 years post-vaccination, with no evident differences across age groups. No clear differences in safety by age were identified. This exploratory analysis shows TAK-003 was efficacious in dengue prevention across age groups in children and adolescents 4-16 years of age living in dengue endemic areas. Relatively lower VE in 4-5 year-olds was potentially confounded by causative serotype distribution, small sample size, and VE by serotype, and should be considered in benefit-risk evaluations in this age group.

Factors involving incomplete vaccination in children under 2 years old in the covid-19 pandemic

Factors involving incomplete vaccination in children under 2 years old in the covid-19 pandemic

Vaccination in children living with HIV – review of Polish recommendations

Vaccines are an extremely effective primary prevention tool recommended for routine use in children worldwide. Vaccination is crucial for patients with underlying diseases, including children living with HIV, because of their increased risk of morbidity and mortality from various vaccine-preventable diseases. Complex care for patients living with HIV includes antiretroviral therapy (which has dramatically improved survival), prophylaxis and treatment of common infections, prophylaxis and treatment of opportunistic infections, and vaccination. Immunisation is generally safe and beneficial for children living with HIV, although HIV-induced immune suppression reduces the benefits. All inactivated vaccines, whether killed whole organism or subunit, recombinant, toxoid, polysaccharide or conjugate (which includes diphtheria, tetanus, pertussis, poliomyelitis, Haemophilus influenzae type b, hepatitis B, hepatitis A, Streptococcus pneumoniae vaccines, Neisseria meningitidis, influenza, HPV), can be administered safely. Live attenuated measles–mumps–rubella and varicella vaccines are indicated in children without severe immunodeficiency. The Bacillus Calmette–Guérin vaccine is contraindicated due to the risk of disseminated BCG infection. Although a live attenuated influenza vaccine is available, it is contraindicated for people living with HIV because of the paucity of safety data and the availability of alternative vaccines. The study reviews the current paediatric immunisation recommendations in HIV infection in Poland. Additionally, we focus on vaccine effectiveness, especially HBV protection based on anti-Hbs antibodies.

Maternal skepticism regarding children's vaccination in Jordan: Investigating the knowledge, attitude, and adherence.

Vaccination is critical to every responsible healthcare system, yielding several health and economic benefits. However, skepticism is a major challenge to vaccination adherence among parents globally. Mothers are primary decision-makers on children's vaccination; therefore, this study aims to assess maternal knowledge, attitudes, and adherence to children's routine vaccination in Jordan, identify the main sources of related information, and explore the awareness and hesitancy related to elective vaccination, which is not incorporated into the national vaccination program (e.g., varicella, flu, meningitis, and meningococcal vaccines). A descriptive, cross-sectional design was conducted to collect data from 533 Jordanian mothers between August and November 2023. Participant mothers completed an online self-administered questionnaire comprising demographics, knowledge, attitudes, and adherence to children's vaccination. The surveyed mothers in general exhibited high levels of knowledge, attitudes, and adherence concerning children's vaccination and a relatively moderate level of adherence concerning elective vaccines. The mothers' perspectives of reluctance towards elective vaccines were explored. The primary healthcare center and physicians were the most prevalent sources of mothers' vaccine-related information. Future efforts should implement tailored health education campaigns that address specific knowledge gaps, such as misconceptions about contraindications and side effects, promote awareness about elective vaccines, and engage healthcare providers to facilitate informed decision-making among Jordanian mothers and improve children's vaccination coverage.

Parental knowledge, attitudes, and practices toward vaccinating their children against influenza: a cross-sectional study from China.

Influenza infection is a health burden in children, and the influenza vaccine is an important prevention strategy for flu illness. Parents play a crucial role in children's influenza vaccination. The study aimed to assess parental knowledge, attitudes, and practices (KAP) related to influenza illness for their children and explore factors that may impact their decisions. This cross-sectional study was conducted in a tertiary hospital in Guangzhou from November 2022 to April 2023. Answers to KAP questions regarding influenza illness and vaccination were summed, with a total KAP score of 20. Univariate and multivariate logistic regression models and linear regression models were conducted to explore the factors associated with influenza vaccination. The results were presented as odds ratios (ORs), β, and 95% confidence intervals (CIs). Overall, 530 parents were respondents, of whom 162 (30.56%) had vaccinated their children during the past year. The mean KAP score (standard deviation) was 13.40 (3.57). Compared to parents who reported non-vaccinated for their children in the past year, the parents who reported an influenza vaccination have higher knowledge scores, attitude scores, practice scores, and total scores. Child body mass index, parental education level (under college), parental work (part-time), and more than two family members over 60 years old were negatively correlated with knowledge score. Child health condition and knowledge score were positively correlated with attitude score. Parental age was negatively associated with attitude score. Though high awareness about influenza illness and vaccination for parents, the coverage rate of influenza vaccination in children was lower in Guangzhou. Implementing public health policies is necessary to spread knowledge about influenza illness and vaccination and to promote the practice of receiving the influenza vaccine in children. Education campaigns would help change the attitudes of parents toward vaccinating their children against the flu.

Soothing and Distress Behaviors of Infants, Parents, and Clinicians During Childhood Vaccinations

ObjectivesThe purpose of this study is to describe the behaviours of infants who were born preterm, their parent, and clinicians during two-, six-, twelve- and eighteen-month vaccinations. MethodsVaccination sessions were video recorded for 3-5 minutes. The proportion of five-second intervals in which distress and soothing behaviour occurred for infants, parents, and clinicians was coded using the Measure of Adult and Infant Soothing and Distress. Coding consisted of three phases: baseline/anticipatory (60 seconds prior to first needle), procedure (first needle to removal of final needle), recovery (up to 180 seconds after removal of final needle). Results64 infants were included. Distress behaviour for infants during baseline ranged from 13% (twelve-month) to 29% (two-month). There was limited anticipatory soothing behaviour from parents (10% (twelve-month) to 50% (two-month)) and clinicians (6% (twelve-month) to 17% (two-month)). Distress behaviour in infants during procedure ranged from 43% (eighteen-month) to 96% (two-month). There was limited soothing behaviour during procedure from parents (10% (twelve-month) to 81% (twelve-month)) and clinicians (13% (twelve-month) to 71% (two-month)). Few infants received additional pain reducing interventions of skin-to-skin contact, 24% oral sucrose, and topical anesthetic. DiscussionDespite infant distress, there was limited anticipatory behaviour from parents and clinicians. Two-month infants displayed the most distress across all timepoints yet received the least amount of treatment and proximal parent and clinician behaviour. Additional implementation efforts are required to increase awareness and practice uptake among parents and clinicians to ensure infants receive equitable and effective pain management.

Health service providers' views on barriers and drivers to childhood vaccination of FDMN/Rohingya refugees: a qualitative study in Cox's Bazar, Bangladesh.

Despite established vaccination programs, vaccine-preventable diseases persist among about 900,000 Forcibly Displaced Myanmar Nationals (FDMN)/Rohingya refugees in the world's largest refugee settlement in Bangladesh. Health service providers (HSPs) play a key role in the delivery of childhood vaccination programs. This study explored their views on individual and context barriers and drivers to childhood vaccination in this setting. Informed by the theoretical framework of the Capability-Opportunity-Motivation-Behavior (COM-B) model for behavior change, this qualitative study collected data through eight focus group discussions (FGDs) with community health workers (CHWs) and vaccinators in selected camps with high or low vaccination coverage rates, and through 11 in-depth interviews (IDIs) with key informants working in strategic, management, and administrative roles. Barriers and drivers were evident across all COM factors for HSPs and caregivers. Among HSPs, knowledge around vaccination acted both as a barrier and driver, while communication skills and confidence in vaccination served as drivers. Caregivers' lack of awareness of vaccination, concerns and mistrust were described as main barriers. Context barriers included information system deficiencies, family dynamics, HSPs' working conditions, and vaccination site accessibility. Context drivers included effective communication, mobilization, and incentives. Differences between high and low coverage camps in Cox's Bazar included variations in HSPs' knowledge, communication strategies, incentive use, and stakeholder collaboration. For better vaccination coverage in the camps, context-related changes regarding collaboration, health workforce and the use of incentives seem necessary. Caregivers' mistrust toward vaccination needs to be considered under the social and historical background of the Rohingya community, and further addressed with targeted communication and campaigning.