Improving Vaccine Adoption And Uptake Of Childhood Vaccinations In Low And Middle-Income Countries:Exploring-Barriers,Practices,Experiences,and Strategies In Pakistan

IntroductionVaccination is one of the most successful methods compared to other medical interventions for saving most lives globally.The amount of resources needed for infectious disease protection,ranging from eradication,and control may be considerably reduced as a result of these immunization initiatives.which will also help to advance the Millennium Development Goals.Therefore,it is crucial for nations to implement immunization programs properly in order to protect the general population’s health.As a result,this research evaluated the program’s effectiveness in low-and middle-income counties as well as the causes of its underperformance and potential solutions by serving Pakistan as a case study.MethodsThis research was divided up into four main parts to be completed utilizing a range of methodologies,including systematic reviews and multiple-stage methods in a qualitative approach.The first part was a systematic review of the program’s performance in Low and Middle-Income Countries(LWICs).This was conducted to ascertain the coverage level for immunizations and to identify system-level barriers that continue to obstruct the efficient provision and uptake of vaccination services.Only English-language papers published between 2000 and 2020 were used in this systematic review.This was done by using PRISMA guidelines.The electronic databases PubMed and Google Scholar were employed,together with selected grey literature,with both Medical Subject Headings(Mesh)and free-text phrases that were tailored to each database’s particular needs utilizing restricted vocabulary.For other parts of the research,Community Engagement(CE)and communication strategies were evaluated as possible solutions for the improvement of vaccination performance on the Pakistan continent.Because Pakistan is the 6th most populous country where the vaccination rate is very low as well as no any relevant study in this domain.This part was conducted by using a three-step cross-sectional study,in-person interviews,member check-ins,and a review of policy literature utilized.For this purpose,the decision-makers in charge of implementing the Expanded Program of Immunization(EPI)in place nationwide were selected for the examination of their views on implementing factors of communication strategy as well as CE conceptualization and enablers and obstacles to implementing CE for increasing vaccine coverage from January through March 2022.The methods and results of these three parts of the research have been reported according to Consolidated criteria for reporting qualitative research(COREQ)guidelines.Thematic analysis was used to examine every piece of evidence.For the conceptualization of CE,35 stakeholder interviews at the national and provincial levels,including legislators,directors,and chairs of vaccine technical committees,as well as follow-up meetings were conducted,Schutz’s Social Phenomenology theory was employed as the foundational strategy.However,to determine the facilitators and barriers to implementing CE,35 high-ranking vaccine decision-makers were interviewed during various stages of implementing the policy and program under EPI across the nation at the provincial and national levels.These interviews were triangulated with participants’ follow-up meetings,the investigator’s field notes,and content analyses of just two vaccine policy papers.To assess the factors that influence the execution of communication strategies,the 22 stakeholders who actively contributed to the design or implementation of vaccine communication strategies at various levels of healthcare delivery and who might be able to provide rich,pertinent,and diversified data pertinent to the study’s goal were interviewed.ResultsEleven articles are included in the first section of the research findings after a systematic review of 689 records.The included articles summary and countries’ information are presented in Appendix A&B.There were a total of five papers on vaccination coverage,four studies on parts of the routine immunization system,a single paper on implementing new and underutilized vaccines,as well as one article on financing vaccines.According to the study’s findings,several key themes emerged from the literature review,including the status of vaccination coverage,immunization uptake challenges,financial issues for the vaccination system and novel vaccines,the introduction of new and underutilized vaccines,and management challenges of vaccine-preventable diseases.Despite an increase in vaccination rates,62%of all unvaccinated children lived in LMICs,indicating that LMICs were still underserved.Moreover,several supply-and demand-side factors,including sociocultural characteristics,the cost of vaccines,problems with access to medical facilities,and other factors,were shown to be obstacles to the uptake of vaccination.Nevertheless,the adoption decisions of LMICs are influenced by financial factors.in terms of the management difficulties associated with vaccine-preventable diseases maternal and neonatal tetanus.measles,poliomyelitis,and measles remained challenging to eradicate.To improve immunization systems,specific strategies to lessen inequality might be needed as well as vaccine customization to meet the requirements of Low and middle-income countries(LMICs).The second part of Community Engagement(CE)understandings findings showed specific terms,such as "community," which included children eligible for vaccination,their parents,and front-line healthcare providers as well as CE strategies.Information sharing,vaccine outreach,and capacity building were considered to be essential components of engagement with those communities.There were no specific policy guidelines or helpful evaluation criteria,despite the participants’ awareness that CE is hard to define and poorly understood.The discussion concluded with an operational definition of CE and an examination of implementation-related issues.This investigative definition of CE was too specific to offer precise guidelines and limitations for developing thorough measuring and assessment procedures,further understanding of stakeholders’ usage of the term,and what characteristics were employed to define the term’s purported meaning.The results of the third part of the study’s facilitators and barriers of CE were grouped into three emerging themes by following Social Ecological Model(SEM).It was also determined that in certain policies and programs level in which involving political dedication,the community,and stakeholders,acted as facilitators,whereas barriers included politicians’shifting relationships with one another and the neglect of a crucial component by policymakers.Next,at the organizational and health workforce levels,enablers of CE include evidence of cross-sector cooperation and partnerships between various health workforces as well as infrastructure and financial constraints that are emphasized as obstacles.Thirdly,community-level traits discovered current capability,education,and resource distribution;religious and cultural practices were addressed as facilitators;limited mobility and consistency in the policy document were considered obstacles for CE practices.However,the fourth part of the study findings were about the implementation factors of the vaccination communication strategy.The SURE(Supporting the Use of Research Evidence)framework was used to identify a number of factors that influence vaccine communication,which were then categorized into health systems and community-level factors.Among the stakeholders interviewed,some of the most frequently highlighted health system impediments were:constrained budget,infrastructure deficits,an inconsistent overall strategy or policy regarding health communication interventions,health workforce factors such as lack of health professionals,inadequate training as well as negative attitudes.Community-level factors included the lack of formalized partnerships between national and local stakeholders(religious leaders,clubs,women’s groups),parents’and caregivers’ perspectives as well as those of community stakeholders.This study also discovered variables that appeared to facilitate communication duties.These included an organized communication team,improved money allocation,engagement of traditional and religious institutions,and political backing.ConclusionsThis research has identified and examined the Expanded Program of Immunization(EPI)performance in two key aspects:the extent of immunization coverage and system-level barriers that prevent the efficient delivery and uptake of immunization services.As a result,it is essential to improve vaccination program performance as well as to provide strong evidence of progress toward the achievement of vaccine coverage outcomes.Regarding recommended solutions,the study found that community-based strategies,particularly Community Engagement(CE)and communication,may have a stronger impact on vaccine coverage rates.The current findings show that in the case of vaccination,national-level decision-makers and policy papers employed the "whole community" approach to explore understanding,barriers,and facilitators of CE.To be able to execute these interventions more successfully,national and provincial stakeholders need to properly understand or conceptualized these strategies.Therefore,context-sensitive,multifaceted approaches that take into account all these elements that affect the sustainable implementation of CE practices are necessary to optimize CE practices.These Our findings may contribute towards the development of efficient methods by which countries and development partners can close coverage gaps and improve the effectiveness of their vaccination programs.Additional comprehensive implementation studies could help to clarify the systemic restrictions impeding the program’s coverage and effectiveness.