From legacy to integration in the Global Polio Eradication Initiative: looking back to look forward.

INTRODUCTION: The Global Polio Eradication Initiative (GPEI) is a global single-disease programme with an extensive infrastructure in some of the world's most underserved areas. It provides a key example of the opportunities and challenges of transition efforts-the process of shifting from donor-funded, single-disease programmes to programmes with more integrated and sustainable programmatic and funding streams. Our goal is to closely analyse the social and political dynamics of the polio transition in the 2010s to provide insights into today, as well as lessons for other programmes. METHODS: We conducted semistructured interviews with GPEI officials involved in transition planning across GPEI partner agencies (n=11). We also drew on document review and interviews with national and subnational actors in Nigeria, India, Ethiopia and the Democratic Republic of the Congo. We inductively analysed this material to capture emergent themes in the evolution of transition activities in the GPEI. RESULTS: Since the mid-2010s, GPEI actors expressed concern that polio's assets should not be lost when polio was eradicated. Planning for polio's legacy, however, proved complicated. The GPEI's commitment to and focus on eradication had taken precedence over strong collaborations outside the polio programme, making building alliances for transition challenging. There were also complex questions around who should be responsible for the transition process, and which agencies would ultimately pay for and deliver polio-funded functions. Current efforts to achieve 'integration' both have great promise and must grapple with these same issues. DISCUSSION: Within the GPEI, relinquishing control to other programmes and planning for significant, long-term funding for transition will be central to achieving successful integration and eventual transition. Beyond polio, other vertical programmes can benefit from going beyond transition 'planning' to integrate transition into the initial design of vertical programmes.

Nurturing transformative local structures of multisectoral collaboration for primary health care: qualitative insights from select states in India.

BACKGROUND: Multisectoral collaboration is essential for advancing primary health care (PHC). In low- and middle-income countries (LMICs), limited institutional capacities, governance issues, and inadequate stakeholder engagement impede multisectoral collaboration. India faces similar challenges, especially at the meso-level (districts and subdistricts). Owing to its dependence on context, and insufficient evidence, understanding "How" to improve multisectoral collaboration remains challenging. This study aims to elicit specific recommendations to strengthen meso-level stewardship in India for multisectoral collaboration. The findings from this study may offer lessons for other LMICs. METHODS: Using purposive, maximum variation sampling, the study team conducted semi-structured interviews with 20 diverse participants, including policymakers, implementers, development agency representatives, and academics experienced in multisectoral initiatives. The interviews delved into participants' experiences, the current situation, enablers, and recommendations for enhancing stakeholder engagement and capacities at the meso-level for multisectoral collaboration. RESULTS: Context and power are critical elements to consider in fostering effective collaboration. Multisectoral collaboration was particularly successful in three distinct governance contexts: the social-democratic context as in Kerala, the social governance context in Chhattisgarh, and the public health governance context in Tamil Nadu. Adequate health system input and timely guidance instil confidence among local implementers to collaborate. While power plays a role through local leadership's influence in setting agendas, convening stakeholders, and ensuring accountability. To nurture transformative local leaders for collaboration, holistic, equity-driven, community-informed approaches are essential. The study participants proposed several concrete steps: at the state level, establish "central management units" for supervising local implementers and ensuring bottom-up feedback; at the district level, rationalise committees and assign deliverables to stakeholders; and at the block level, expand convergence structures and involve local self-governments. Development partners can support data-driven priority setting, but local implementers with contextual familiarity should develop decentralised plans collaboratively, articulating rationales, activities, and resources. Finally, innovative training programs are required at all levels, fostering humility, motivation, equity awareness, leadership, problem- solving, and data use proficiency. CONCLUSION: This study offers multiple solutions to enhance local implementers' engagement in multisectoral efforts, advocating for the development, piloting, and evaluation of innovative approaches such as the block convergence model, locally-led collaboration efforts, and novel training methods for local implementers.

An anthropological history of Nepal's Female Community Health Volunteer program: gender, policy, and social change.

BACKGROUND: Community health workers (CHWs) are central to Primary Health Care globally. Amidst the current flourishing of work on CHWs, there often is a lack of reference to history-even in studies of programs that have been around for decades. This study examines the 35-year trajectory of Nepal's Female Community Health Volunteers (FCHVs). METHODS: We conducted a content analysis of an archive of primary and secondary research materials, grey literature and government reports collected during 1977-2019 across several regions in Nepal. Documents were coded in MAXQDA using principles of inductive coding. As questions arose from the materials, data were triangulated with published sources. RESULTS: Looking across four decades of the program's history illuminates that issues of gender, workload, and pay-hotly debated in the CHW literature now-have been topics of discussion for observers and FCHVs alike since the inception of the program. Following experiments with predominantly male community volunteers during the 1970s, Nepal scaled up the all-female FCHV program in the late 1980s and early 1990s, in part because of programmatic goals focused on maternal and child health. FCHVs gained legitimacy as health workers in part through participation in donor-funded vertical campaigns. FCHVs received a stable yet modest regular stipend during the early years, but since it was stopped in the 1990s, incentives have been a mix of activity-based payments and in-kind support. With increasing outmigration of men from villages and growing work responsibilities for women, the opportunity cost of health volunteering increased. FCHVs started voicing their dissatisfaction with remuneration, which gave rise to labor movements starting in the 2010s. Government officials have not comprehensively responded to demands by FCHVs for decent work, instead questioning the relevance of FCHVs in a modern, medicalized Nepali health system. CONCLUSIONS: Across public health, an awareness of history is useful in understanding the present and avoiding past mistakes. These histories are often not well-archived, and risk getting lost. Lessons from the history of Nepal's FCHV program have much to offer present-day debates around CHW policies, particularly around gender, workload and payment.

Betrayal-Based Moral Injury and Mental Health Problems Among Healthcare and Hospital Workers Serving COVID-19 Patients.

One factor potentially driving healthcare and hospital worker (HHW)'s declining mental health during the COVID-19 pandemic is feeling betrayed by institutional leaders, coworkers, and/or others' pandemic-related responses and behaviors. We investigated whether HHWs' betrayal-based moral injury was associated with greater mental distress and post-traumatic stress disorder (PTSD) symptoms related to COVID-19. We also examined if these associations varied between clinical and non-clinical staff. From July 2020 to January 2021, cross-sectional online survey data were collected from 1,066 HHWs serving COVID-19 patients in a large urban US healthcare system. We measured betrayal-based moral injury in three groups: institutional leaders, coworkers/colleagues, and people outside of healthcare. Multivariate logistic regression analyses were performed to investigate whether betrayal-based moral injury was associated with mental distress and PTSD symptoms. Approximately one-third of HHWs reported feeling betrayed by institutional leaders, and/or people outside healthcare. Clinical staff were more likely to report feelings of betrayal than non-clinical staff. For all respondents, 49.5% reported mental distress and 38.2% reported PTSD symptoms. Having any feelings of betrayal increased the odds of mental distress and PTSD symptoms by 2.9 and 3.3 times, respectively. These associations were not significantly different between clinical and non-clinical staff. As health systems seek to enhance support of HHWs, they need to carefully examine institutional structures, accountability, communication, and decision-making patterns that can result in staff feelings of betrayal. Building trust and repairing ruptures with HHWs could prevent potential mental health problems, increase retention, and reduce burnout, while likely improving patient care.

A scoping review on integrated health campaigns for immunization in low- and middle-income countries.

Health campaign integration is a key implementation strategy outlined by the World Health Organization to achieve universal health coverage. This scoping review synthesizes the evidence on Integrated Health Campaigns (IHC) in the field of immunization in low- and middle-income countries (LMICs) regarding the most common strategies, facilitators and barriers. Four reviewers followed a systematic approach to identify, screen and analyse relevant articles. The team used three search engines (PubMed, Scopus and Google Scholar) to identify peer-reviewed journal articles as well as select institutional websites for grey literature publications. Full-text articles using any study design and across any time frame were included. Data were extracted following a predefined matrix, analysed deductively and presented in a narrative synthesis. Thirty articles (20 academic and 10 grey) were included in the final review. All studies included identified IHCs as effective when planning or implementation is integrated. The common strategies were: using resources efficiently in remote locations; using national immunization days to maximize impact; targeting specific age groups by selecting intervention sites that are frequented by that age group; building community ownership over the integrated program; and integrating programs that already share common elements. The key facilitators were: closing the gap between services and communities; planning, coordination and resource management both before and during integration; cost-effectiveness; and utilization of pre-existing infrastructure. The common barriers included seemingly optimized initial cost to appear feasible only in the short term and additional responsibilities on the field staff. This review finds IHCs a common practice in immunization and identifies gaps in evidence on evaluation; indicating the need for additional research. Strong evidence accounts IHCs to increase coverage, improve community acceptance of health services and strengthen the community models of health service delivery.

"A slap in the face": Institutional betrayal, burnout, and career choice regret among frontline health care workers serving COVID-19 patients.

The COVID-19 pandemic has exacted a physical and mental health toll on health care and hospital workers (HHWs). To provide COVID-19 care, HHWs expected health care institutions to support equipment and resources, ensure safety for patients and providers, and advocate for employees' needs. Failure to do these acts has been defined as institutional betrayal. Using a mixed-methods approach, this study aimed to explore the experience of institutional betrayal in HHWs serving COVID-19 patients and the associations between self-reported institutional betrayal and both burnout and career choice regret. Between July 2020 and January 2021, HHWs working in an urban U.S. health care system participated in an online survey (n = 1,189) and semistructured interview (n = 67). Among 1,075 quantitative participants, 57.8% endorsed institutional betrayal. Qualitative participants described frustration when the institution did not prioritize their safety while reporting they perceived receiving inadequate compensation from the system and felt that leadership did not sufficiently respond to their needs. Participants who endorsed prolonged breaches of trust reported more burnout and stronger intent to quit their job. Quantitatively, institutional betrayal endorsement was associated with 3-fold higher odds of burnout, aOR = 2.94, 95% CI [2.22, 3.89], and 4-fold higher odds of career choice regret, aOR = 4.31, 95% CI [3.15, 5.89], compared to no endorsement. Developing strategies to prevent, address, and repair institutional betrayal in HHWs may be critical to prevent and reduce burnout and increase motivation to work during and after public health emergencies.

How to eradicate polio in Pakistan: Insights from community health workers.

Pakistan, along with Afghanistan, is one of two countries where wild poliovirus is still endemic. Frontline workers (FLWs) are the staff most intimately familiar with both implementation challenges and community context. Harnessing their expertise may be a way to improve the community-polio program interface, which has been a persistent and shifting challenge in polio-endemic areas of both countries. From 2020-2022, we engaged frontline workers in 18 Super High-Risk Union Councils (SHRUCs) in Pakistan through a Human-Centered Design ideas competition. In that competition, teams of polio FLWs identified the most significant barriers they faced in conducting their work, and suggested solutions to those problems-a window into the issues the program faces by the people who know it best. The suggestions of FLWs on how to eradicate polio fell into four main categories. First, there were suggestions to tackle community fatigue by reducing touchpoints, particularly visits solely for data collection. Second, there were calls to improve Primary Health Care in SHRUCs, as a way of addressing community frustrations over an intense focus on just one disease in the context of numerous acute needs. Third, there were suggested ways to increase community engagement through locally relevant channels. Finally, many workers suggested improvements to Human Resources processes and workplace dynamics. Across these ideas, one repeated concept is the need for balance between the intensity of polio activities required for eradication and the provision of other government services, including health services. FLWs engaged the process deeply, providing well thought out problem statements and ideas for change. It is our view that there is no one more qualified to speak to the issues on the ground than FLWs. There are critical insights available if we listen to people who are instrumental to the success of health programs, but not commonly involved with creating policy.

Leading from the frontlines: community-oriented approaches for strengthening vaccine delivery and acceptance.

BACKGROUND: Although immunization is one of the most successful public health interventions, vaccine hesitancy and the COVID-19 pandemic have strained health systems, contributing to global reductions in immunization coverage. Existing literature suggests that involving community members in vaccine interventions has been beneficial, but efforts to facilitate community ownership to motivate vaccine acceptance have been limited. METHODS: Our research leveraged community-based participatory research to closely involve the community from conception to implementation of an intervention to facilitate vaccine acceptance in Mewat District in Haryana, an area in India with extremely low vaccination coverage. Through the development of a community accountability board, baseline data collection on vaccination barriers and facilitators, and two human-centered design workshops, our team co-created a six-pronged intervention with community leaders and community health workers. This intervention included involving religious leaders in vaccine discussions, creating pamphlets of local vaccine champions for dissemination to parent and child caregivers, creating short videos of local leaders advocating for vaccines, implementing communication training exercises for community health workers, and implementing strategies to strengthen coordination between health workers and supervisors. RESULTS: Post-intervention data suggested parents and child caregivers had improvements in knowledge of the purpose of vaccines and side effects of vaccines. They noted that the involvement of religious leaders was beneficial, they were more willing to travel to vaccinate their children, and they had fewer non-logistical reasons to refuse vaccination services. Interviews with community leaders and community health workers who were involved in the creation of the intervention suggested that they experienced higher levels of ownership, they were better equipped to address community concerns, and that vaccine misinformation decreased in the post-intervention period. CONCLUSION: Through this unique intervention to strengthen vaccine uptake that incorporated the needs, interests, and expertise of local community members, we developed a community-driven approach to strengthen vaccine acceptance in a population with low uptake. This comprehensive approach is essential to amplify local voices, identify local concerns and advocates, and leverage bottom-up strategies to co-design successful interventions to facilitate long-term change.

Day to Day and Environmental Risk Factors for Psychological Distress Among Healthcare Workers: A Mixed Methods Analysis.

OBJECTIVE: Despite a growing literature on mental health among clinical staff during COVID-19, factors shaping distress for nonclinical staff are understudied and may be driven by inequalities at work. We aimed to discuss the role of workplace factors in shaping psychological distress for a diverse group of clinical, nonclinical, and other health and hospital workers (HHWs). METHODS: This convergent parallel mixed-methods study with HHWs in a US hospital system included an online survey ( n = 1127) and interviews ( n = 73) collected from August 2020 to January 2021. We thematically analyzed interviews; findings informed log binomial regression estimating risk factors for severe psychological distress (Patient Health Questionnaire - 4 item version [PHQ-4] scores of 9 or greater). RESULTS: Qualitatively, day-to-day stressors fostered fear and anxiety, and concerns about work environments manifest as betrayal and frustration with leadership. Distress was associated with burnout, financial concerns, and feeling betrayed or unsupported by the institution and leadership. Staff in service versus clinical roles had higher risk for severe distress (adjusted prevalence ratio = 2.04, 95% confidence interval = 1.13-2.66); HHWs receiving workplace mental health support had lower risk (adjusted prevalence ratio = 0.52, 95% confidence interval = 0.29-0.92. CONCLUSIONS: Our mixed-methods study underscores how the pandemic brought inequalities to the surface to increase distress for vulnerable HHWs. Workplace mental health activities can support HHWs now and during future crises.

Breaking the silence on gendered harassment and assault of community health workers: an analysis of ethnographic studies.

INTRODUCTION: Across a variety of settings, women in tenuous financial circumstances are drawn to community health work as a way to advance themselves in the context of limited employment options. Female Community Health Workers (CHWs) are often preferred because they can more easily access mothers and children; at the same time, gender norms are at the heart of many of the challenges and inequities that these workers encounter. Here, we explore how these gender roles and a lack of formal worker protections leave CHWs vulnerable to violence and sexual harassment, common occurrences that are frequently downplayed or silenced. METHODS: We are a group of researchers who work on CHW programmes in a variety of contexts globally. The examples here are drawn from our ethnographic research (participant observation and in-depth interviews). RESULTS: CHW work creates job opportunities for women in contexts where such opportunities are extremely rare. These jobs can be a lifeline for women with few other options. Yet the threat of violence can be very real: women may face violence from the community, and some experience harassment from supervisors within health programmes. CONCLUSION: Taking gendered harassment and violence seriously in CHW programmes is critical for research and practice. Fulfilling CHWs' vision of health programmes that value them, support them and give them opportunities may be a way for CHW programmes to lead the way in gender-transformative labour practices.

Everyday capabilities were a path to resilience during COVID-19: a case study of five countries.

COVID-19 demanded urgent responses by all countries, with wide variations in the scope and sustainability of those responses. Scholarship on resilience has increasingly emphasized relational considerations such as norms and power and how they influence health systems' responses to evolving challenges. In this study, we explored what influenced countries' national pandemic responses over time considering a country's capacity to test for COVID-19. To identify countries for inclusion, we used daily reports of COVID-19 cases and testing from 184 countries between 21st January 2020 and 31st December 2020. Countries reporting test data consistently and for at least 105 days were included, yielding a sample of 52 countries. We then sampled five countries representing different geographies, income levels and governance structures (Belgium, Ethiopia, India, Israel and Peru) and conducted semi-structured key informant interviews with stakeholders working in, or deeply familiar with, national responses. Across these five countries, we found that existing health systems capacities and political leadership determined how responses unfolded, while emergency plans or pandemic preparedness documents were not fit-for-purpose. While all five countries were successful at reducing COVID-19 infections at a specific moment in the pandemic, political economy factors complicated the ability to sustain responses, with all countries experiencing larger waves of the virus in 2021 or 2022. Our findings emphasize the continued importance of foundational public health and health systems capacities, bolstered by clear leadership and multisectoral coordination functions. Even in settings with high-level political leadership and a strong multisectoral response, informants wished that they-and their country's health system-were more prepared to address the pandemic and maintain an effective response over time. Our findings challenge emergency preparedness as the dominant frame in pandemic preparedness and call for a continued emphasis on health systems strengthening to respond to future health shocks and a pandemic moving to endemic status.

Vaccine acceptance in rural India: Engaging faith leaders as vaccine ambassadors.

Introduction: Religious faith is a key marker of identity and shapes community perspectives and trust. Faith leader involvement in vaccine campaigns in India have been beneficial to counter misinformation regarding infectious diseases such as polio. Faith leaders are influential stakeholders who bear potential to enhance public confidence in vaccine campaigns. Context: While vaccine coverage has been increasing in India, inequities abound, especially in populations with historically low vaccine confidence. The COVID-19 pandemic has led to major disruptions in delivery of routine immunization services for children. To address these challenges, we co-designed interventions aimed at contextual communication strategies and peer support. Engaging faith leaders was an important part of this intervention. In this report we describe our experience and highlight the perspectives of faith leaders and their expectations of the outcomes for this intervention. Programmatic elements: The CIVIC Project, conducted from January to December 2021 aimed to engage caregivers, community health workers and key stakeholders, particularly, faith leaders in co-designing interventions to address vaccine hesitancy in Mewat. The project, deeply rooted in community based participatory research, used a three-E approach (Exploration of community perspectives, Establishment of vaccine trust and awareness, Engagement in vaccine promotion activities) to successfully engage faith leaders in the design and dissemination of media messages advocating for vaccine acceptance and uptake. Lessons learned: The involvement of faith leaders in the intervention benefited the community in two ways. First, faith leaders were spotlighted via videos, often disseminating advice and personal anecdotes about vaccines, thus reassuring caregivers and community members who previously expressed distrust in vaccines. Second, involvement of trusted faith leaders provided a platform for a two-way dialogue for the community to openly discuss and address myths and misconceptions regarding vaccines. This project provided the learning that co-creating interventions with faith leaders who are often gatekeepers of close-knit communities can lead to the development of vaccine positive messaging that community members relate with, motivating increased vaccine confidence.

A light touch intervention with a heavy lift - gender, space and risk in a global vaccination programme.

Frontline workers (FLWs) in the Global Polio Eradication Initiative go door-to-door delivering polio vaccine to children. They have played a pivotal role in eliminating wild polio from most countries on earth; at the same time, they face significant bodily risk. STRIPE, an international consortium, conducted a mixed-methods study exploring the knowledge and experiences of polio staff in seven countries (Afghanistan, Bangladesh, Democratic Republic of Congo, Ethiopia, India, Indonesia and Nigeria). We surveyed 826 polio FLWs and conducted semi-structured interviews with 22 of them. We used a body work framework to guide analysis. Polio workers perform a different kind of body work than many other FLWs. Delivering a few drops of oral vaccine takes a light touch, but gendered spaces can make the work physically dangerous. Polio's FLWs must bend or break gendered space norms as they move from house-to-house. Navigating male spaces carries risk for women, including lethal risk, particularly in conflict settings. Workers manoeuvre between skeptical community members and the demands of supervisors which generates emotional labour. Providing FLWs with more power to make operational decisions and providing them with robust teams and remuneration would improve the likelihood that they could act to improve their working conditions.

The family context of ASHA and Anganwadi work in rural Rajasthan: Gender and labour in CHW programmes.

Across the literature on CHWs globally, the role of CHWs' families remains largely unexplored. This article focuses on ASHAs and Anganwadi Workers in a town in rural Rajasthan, India. We interviewed all twenty ASHAs and Anganwadi Workers in this town, and ten of their families; we also conducted participant observation in Anganwadi Centers, health centres, and family settings. ASHA and Anganwadi work was in high demand, despite being low paying, because of an overall lack of jobs for educated women. Every aspect of CHW work, from recruitment to selection to training to the number of hours spent on the job, was heavily determined by families. Women's mobility, income, and workload was tied up in family structures. ASHA and Anganwadi Work increased the mobility and autonomy of the women who held those jobs in significant ways. But mostly, women stayed in these extremely low paying jobs because they and their families hoped that one day they would become permanent jobs with salaries and benefits. By providing honourable work, and keeping the idea of permanent employment in view but always just out of reach, the ASHA and Anganwadi programmes both exploited and strengthened gendered inequalities in the rural Rajasthani labour market.

The anthropology of health systems: A history and review.

Ethnographies of health systems are a theoretically rich and rapidly growing area within medical anthropology. Critical ethnographic work dating back to the 1950s has taken policymakers and health staff as points of entry into the power structures that run through the global health enterprise. In the last decade, there has been a surge of ethnographic work on health systems. We conceptualize the anthropology of health systems as a field; review the history of this body of knowledge; and outline emergent literatures on policymaking, HIV, hospitals, Community Health Workers, health markets, pharmaceuticals, and metrics. High-quality ethnographic work is an excellent way to understand the complex systems that shape health outcomes, and provides a critical vantage point for thinking about global health policy and systems. As theory in this space develops and deepens, we argue that anthropologists should look beyond the discipline to think through what their work does and why it matters.

Community perceptions of vaccination among influential stakeholders: qualitative research in rural India.

BACKGROUND: In India and other low- and middle-income countries, multiple family and community members are influential in caregivers' perceptions of vaccination. Existing literature indicates the primary caregiver, typically the mother, is instrumental in vaccine decision-making, but this may vary in contexts. We investigated the role of stakeholders in India who influence caregivers' vaccination perceptions, as this is essential to developing strategies to promote vaccine acceptance and improve uptake. METHODS: This research was conducted in 2019 in Mewat District in Haryana, an area in India with extremely low vaccination coverage. We conducted six focus group discussions with 60 participants in the following categories: fathers of children under-5 years old, expectant mothers, mothers-in-law, community health workers, and community influencers such as locally elected officials and religious leaders. RESULTS: Our results highlighted four themes that influence vaccine uptake. First, while caregivers associated vaccination with reductions in specific diseases, they also noted that vaccination services brought broad health gains, including improved nutrition, antenatal guidance, and social support. Second, community health workers critically influenced, positively or negatively, caregivers' vaccination perceptions. Third, community health workers faced gaps in their education such as limited training on vaccine side-effects, placing them at a disadvantage when dealing with families. Finally, we found that mothers-in-law, fathers, and religious leaders influence caregivers' perceptions of vaccination. CONCLUSIONS: Communication of broader benefits of vaccines and vaccination services by community health workers could be impactful in increasing vaccine acceptance. Vaccine uptake could potentially be improved by facilitating community health workers' ownership over vaccine acceptance and uptake by involving them in the design and implementation of interventions to target mothers and mothers-in-law. A 'bottom-up' approach, leveraging community health workers' knowledge to design interventions, and giving a voice to key members of the household and society beyond mothers alone, may sustain health improvement in low vaccine coverage areas.

Translating Implementation Experiences and Lessons Learned From Polio Eradication Into a Global Health Course: Insights From an International Consortium.

Lessons learned from one global health program can inform responses to challenges faced by other programs. One way to disseminate these lessons is through courses. However, such courses are often delivered by and taught to people based in high-income countries and thus may not present a truly global perspective. The Synthesis and Translation of Research and Innovations from Polio Eradication (STRIPE) is a consortium of 8 institutions in Afghanistan, Bangladesh, the Democratic Republic of the Congo, Ethiopia, India, Indonesia, Nigeria, and the United States that seeks to carry out such a transfer of the lessons learned in polio eradication. This short report describes the collaborative process of developing content and curriculum for an international course, the learnings that emerged, the barriers we faced, and recommendations for future similar efforts. Various parts of our course were developed by teams of researchers from countries across South Asia and sub-Saharan Africa. We held a series of regional in-person team meetings hosted in different countries to improve rapport and provide a chance to work together in person. The course content reflects the diversity of team members' knowledge in a variety of contexts. Challenges to this effort included team coordination (e.g., scheduling across time zones); hierarchies across and between countries; and the coronavirus disease (COVID-19) pandemic. We recommend planning for these hierarchies ahead of time and ensuring significant in-person meeting time to make the most of international collaboration.

30 years of polio campaigns in Ethiopia, India and Nigeria: the impacts of campaign design on vaccine hesitancy and health worker motivation.

INTRODUCTION: The debate over the impact of vertical programmes, including mass vaccination, on health systems is long-standing and often polarised. Studies have assessed the effects of a given vertical health programme on a health system separately from the goals of the vertical programme itself. Further, these health system effects are often categorised as either positive or negative. Yet health systems are in fact complex, dynamic and tightly linked. Relationships between elements of the system determine programme and system-level outcomes over time. METHODS: We constructed a causal loop diagram of the interactions between mass polio vaccination campaigns and government health systems in Ethiopia, India and Nigeria, working inductively from two qualitative datasets. The first dataset was 175 interviews conducted with policymakers, officials and frontline staff in these countries in 2011-2012. The second was 101 interviews conducted with similar groups in 2019, focusing on lessons learnt from polio eradication. RESULTS: Pursuing high coverage in polio campaigns, without considering the dynamic impacts of campaigns on health systems, cost campaign coverage gains over time in weaker health systems with many campaigns. Over time, the systems effects of frequent campaigns, delivered through parallel structures, led to a loss of frontline worker motivation, and an increase in vaccine hesitancy in recipient populations. Co-delivery of interventions helped to mitigate these negative effects. In stronger health systems with fewer campaigns, these issues did not arise. CONCLUSION: It benefits vertical programmes to reduce the construction of parallel systems and pursue co-delivery of interventions where possible, and to consider the workflow of frontline staff. Ultimately, for health campaign designs to be effective, they must make sense for those delivering and receiving campaign interventions, and must take into account the complex, adaptive nature of the health systems in which they operate. .

Impact and effect mechanisms of mass campaigns in resource-constrained health systems: quasi-experimental evidence from polio eradication in Nigeria.

BACKGROUND: Mass campaigns are a key strategy for delivering life-saving interventions under Global Health Initiatives, especially in weak health system contexts. They are frequently designed parallel to the health system to rapidly achieve programme targets such as vaccination coverage, but we lack quantitative evidence demonstrating their impact and effect mechanisms on health system performance at sub-/national level. This longitudinal study responds to this gap through an analysis of polio eradication campaigns in Nigeria. METHODS: Using four rounds of Demographic and Health Surveys in Nigeria between October 2000 and December 2017, we created a longitudinal dataset containing 88 881 under-5 children/pregnancies. We estimated the relationships between individuals' campaign exposure and health system performance indices (full RI schedule attainment, maternal healthcare services utilisation and child survival) using multilevel, mixed-effects regression models applied nationally and stratified by the six geopolitical zones in Nigeria. RESULTS: Nationally, high-frequency mass campaigns had detrimental health systems effects that potentially left 3.6 million children deprived of full immunisation. The frequency of campaigns was most concentrated in regions with weak health systems, where the operations of RI were disrupted, alongside negative effects on child survival and institutional delivery. In contrast, regions with relatively strong health systems and few campaigns experienced beneficial effects on maternal healthcare service utilisation. CONCLUSIONS: As we provide evidence that well-functioning health systems can benefit from mass campaigns under Global Health Initiatives, our work also challenges the established wisdom to intensify mass campaigns in weaker health systems to bypass service provision bottlenecks. Mass campaigns do not inherently benefit or damage a health system, but frequent campaigns in weak health system contexts can impede service provision. We call for an additional burden of proof and active efforts to integrate mass campaigns into routine health services by harmonising implementation plans and service delivery in weak health system contexts.