The CORE Group Polio Project: An Overview of Its History and Its Contributions to the Global Polio Eradication Initiative

Exploring the role of community health organizations in promoting public health during a health crisis: a qualitative study of COVID-19 responses in South Africa and Zambia

While the COVID-19 pandemic amplified the need for accurate and actionable health information, uncertainty and the proliferation of misinformation have contributed to significant mistrust in public health messages, especially among marginalized communities. Community health organizations can play an important role in creating trust and providing targeted health information to vulnerable groups. This qualitative study, which is focused on community health organizations supporting vulnerable populations in South Africa and Zambia, finds that during the pandemic, community health organizations expanded their roles and leveraged their established access and trust to support the communities they serve with health education and services. However, the reliance on external support limits the organizations' ability to respond in an effective and efficient manner during health crises.

Community health workers at the dawn of a new era: 11. CHWs leading the way to "Health for All"

BACKGROUND

This is the concluding paper of our 11-paper supplement, "Community health workers at the dawn of a new era".

METHODS

We relied on our collective experience, an extensive body of literature about community health workers (CHWs), and the other papers in this supplement to identify the most pressing challenges facing CHW programmes and approaches for strengthening CHW programmes.

RESULTS

CHWs are increasingly being recognized as a critical resource for achieving national and global health goals. These goals include achieving the health-related Sustainable Development Goals of Universal Health Coverage, ending preventable child and maternal deaths, and making a major contribution to the control of HIV, tuberculosis, malaria, and noncommunicable diseases. CHWs can also play a critical role in responding to current and future pandemics. For these reasons, we argue that CHWs are now at the dawn of a new era. While CHW programmes have long been an underfunded afterthought, they are now front and centre as the emerging foundation of health systems. Despite this increased attention, CHW programmes continue to face the same pressing challenges: inadequate financing, lack of supplies and commodities, low compensation of CHWs, and inadequate supervision. We outline approaches for strengthening CHW programmes, arguing that their enormous potential will only be realized when investment and health system support matches rhetoric. Rigorous monitoring, evaluation, and implementation research are also needed to enable CHW programmes to continuously improve their quality and effectiveness.

CONCLUSION

A marked increase in sustainable funding for CHW programmes is needed, and this will require increased domestic political support for prioritizing CHW programmes as economies grow and additional health-related funding becomes available. The paradigm shift called for here will be an important step in accelerating progress in achieving current global health goals and in reaching the goal of Health for All.

Overcoming vaccine deployment challenges among the hardest to reach: lessons from polio elimination in India

After more than 30 years of efforts to eliminate polio, India was certified polio free by WHO in 2014. The final years prior to polio elimination were characterised by concentrated efforts to vaccinate hard-to-reach groups in the state of Uttar Pradesh, including migrant workers, religious minority Muslims and impoverished communities with poor pre-existing social support systems. This article aims to describe the management strategies employed by India to improve the deployment and acceptance of vaccines among hard-to-reach groups in Uttar Pradesh in the final years prior to polio elimination.

Three main management principles contributed to polio elimination among the hardest to reach in Uttar Pradesh: bundling of health services, local stakeholder engagement and accountability mechanisms for public health initiatives. In an effort to market the polio campaign as an authentic health-oriented programme, vaccine acceptance was improved by packaging other basic healthcare services such as routine check-ups and essential medications. India also prioritised local stakeholder engagement by using influential community leaders to reach vaccine hesitant groups. Lastly, the accountability mechanisms developed between non-profit organisations and decision-makers in the field ensured accurate reporting and identified deficiencies in healthcare worker training. The lessons learnt from India’s polio vaccination programme have important implications for the implementation of future mass vaccination initiatives, particularly when trying to reach vulnerable communities.

Why Communities Should Be the Focus to Reduce Stigma Attached to COVID-19

Since 1999, the CORE Group Polio Project (CGPP) has developed, refined, and deployed effective strategies to mobilize communities to improve vaccine uptake for polio (and other vaccine-preventable diseases such as measles) and conduct surveillance for infectious disease threats in high-risk, border, and hard-to-reach locations. CORE Group Polio Project teams have been called upon to address the COVID-19 pandemic, and, like with polio, the pandemic response is impacted by stigma in all areas of response, from health education, testing, contact tracing, and even treatment for infected individuals. The CGPP has reached back into its polio experience and is redeploying successful community engagement activities to address stigma as part of the COVID-19 response. Across country programs, community health volunteers communicate risk and behavior change at the household level by integrating health education and promotion activities with a focus on practical measures of COVID-19 prevention. Moreover, leveraging established and trusted partnerships with community networks and community leaders are providing lessons that can be adopted by the global community. The CGPP offers three overarching recommendations to curb stigma: 1) facilitating inclusive community engagement, 2) leveraging existing community networks and 3) cocreating with community leaders.

Low toxicity and high immunogenicity of an inactivated vaccine candidate against COVID-19 in different animal models

The ongoing COVID-19 pandemic is causing huge impact on health, life, and global economy, which is characterized by rapid spreading of SARS-CoV-2, high number of confirmed cases and a fatality/case rate worldwide reported by WHO. The most effective intervention measure will be to develop safe and effective vaccines to protect the population from the disease and limit the spread of the virus. An inactivated, whole virus vaccine candidate of SARS-CoV-2 has been developed by Wuhan Institute of Biological Products and Wuhan Institute of Virology. The low toxicity, immunogenicity, and immune persistence were investigated in preclinical studies using seven different species of animals. The results showed that the vaccine candidate was well tolerated and stimulated high levels of specific IgG and neutralizing antibodies. Low or no toxicity in three species of animals was also demonstrated in preclinical study of the vaccine candidate. Biochemical analysis of structural proteins and purity analysis were performed. The inactivated, whole virion vaccine was characterized with safe double-inactivation, no use of DNases and high purity. Dosages, boosting times, adjuvants, and immunization schedules were shown to be important for stimulating a strong humoral immune response in animals tested. Preliminary observation in ongoing phase I and II clinical trials of the vaccine candidate in Wuzhi County, Henan Province, showed that the vaccine is well tolerant. The results were characterized by very low proportion and low degree of side effects, high levels of neutralizing antibodies, and seroconversion. These results consistent with the results obtained from preclinical data on the safety.

People-centred surveillance: a narrative review of community-based surveillance among crisis-affected populations

Outbreaks of disease in settings affected by crises grow rapidly due to late detection and weakened public health systems. Where surveillance is underfunctioning, community-based surveillance can contribute to rapid outbreak detection and response, a core capacity of the International Health Regulations. We reviewed articles describing the potential for community-based surveillance to detect diseases of epidemic potential, outbreaks, and mortality among populations affected by crises. Surveillance objectives have included the early warning of outbreaks, active case finding during outbreaks, case finding for eradication programmes, and mortality surveillance. Community-based surveillance can provide sensitive and timely detection, identify valid signals for diseases with salient symptoms, and provide continuity in remote areas during cycles of insecurity. Effectiveness appears to be mediated by operational requirements for continuous supervision of large community networks, verification of a large number of signals, and integration of community-based surveillance within the routine investigation and response infrastructure. Similar to all community health systems, community-based surveillance requires simple design, reliable supervision, and early and routine monitoring and evaluation to ensure data validity. Research priorities include the evaluation of syndromic case definitions, electronic data collection for community members, sentinel site designs, and statistical techniques to counterbalance false positive signals.

The Critical Role and Evaluation of Community Mobilizers in Polio Eradication in Remote Settings in Africa and Asia

This article assesses the CORE Group Polio Project (CGPP) experience over a 20-year period in 5 countries. It examines how a program designed to provide social mobilization to eradicate one disease, and which did so effectively, functioned within the general framework of community health workers (CHWs). Vertical health programs often have limited impact on broader community health. CGPP has a 20-year history of social mobilization and effective program interventions. This history provided an opportunity to assess how CGPP community mobilizers (CMs) functioned in polio and maternal and child health. The Updated Program Functionality Matrix for Optimizing Community Health Programs tool of the CHW Assessment and Improvement Matrix (AIM) was used to examine CGPP CM roles across different contexts. The analysis determined that CGPP CMs met the basic level of functioning (level 3) for 6 of the 10 components of the AIM tool. This cross-country descriptive analysis of the CGPP demonstrates the importance of embracing the full range of CHW AIM components, even in a vertical program. Use of data, community involvement, local adaptation, and linkage with the health system are especially critical for success. This general lesson could be applied to other community mobilization and disease/epidemic control initiatives, especially as we face the issues of the COVID-19 pandemic.

Use of Social Mobilization and Community Mobilizers by Non-governmental Health Organizations in Malawi to Support the Eradication of Polio, Improve Routine Immunization Coverage, and Control Measles and Neonatal Tetanus

Seventy-five percent of children aged 12-23 months in Malawi have received all eight basic vaccinations-still leaving many children at risk. The Malawi Expanded Program on Immunization comprehensive Multi-Year Plan 2016-2020 reveals several challenges impeding immunization and disease surveillance efforts, such as the fact that non-governmental health organizations (NGHOs) and communities are minimally included in the planning, implementation, and monitoring of these activities. This article examines the extent to which NGHOs are promoting the use of social mobilization (SM) and community mobilizers (CMs) for sharing health information related to the eradication of polio, the importance of routine immunization, and the control of measles and neonatal tetanus. Data collection involved document analysis and interviews with 11 organizations in Malawi whose work contributes to the eradication of polio and control of measles and neonatal tetanus. Content analysis was used to analyze the qualitative data, whereas descriptive statistics were used to analyze the quantitative data. Non-governmental health organizations use a variety of approaches for SM, including mass media campaigns (radio and printed booklets), local skits and dramas, and home visits. Most NGHOs use training workshops and opinion leaders to impart knowledge and skills to CMs on immunization to eradicate polio and to control measles and neonatal tetanus. Major challenges faced by the NGHOs include negative attitudes toward campaigns and demotivation of CMs due to lack of financial incentives. The article concludes with a discussion of approaches to strengthen SM and the role of CMs by NGHOs.

The CORE Group Polio Project's Community Volunteers and Polio Eradication in Ethiopia: Self-Reports of Their Activities, Knowledge, and Contributions

In 2001, the CORE Group Polio Project (CGPP) began to support polio eradication initiatives in hard-to-reach pastoralist and semi-pastoralist high-risk border areas of Ethiopia by training and supporting community volunteers (CVs) for immunization promotion and community-based surveillance activities. This article describes the development and current status of the CGPP CV network in Ethiopia. It also reports the results of a 2016 survey of CVs. Community volunteers are selected jointly by the local community, local government officials, and local health facility staff. They work closely with the health extension worker in their area and are responsible for 50-100 households. More than 12,000 CVs have been trained and have reached six million people. They make routine home visits to 1) provide education on vaccine-preventable diseases, 2) promote healthy behaviors, 3) inform parents on how to access immunization services, and 4) report cases of acute flaccid paralysis, neonatal tetanus, and measles as well as births. The 2016 survey of 675 CVs demonstrated that 84.1% had conducted home visits in the previous month to 1) identify and register pregnant mothers and newborns, 2) provide health education, 3) conduct disease surveillance, and 4) search for and register immunization defaulters. Of the CVs, 98.2% reported that their work had led to improvements in the community. Knowledge of CVs about vaccine-preventable diseases was suboptimal. CVs expressed a desire for more training. Community volunteers have made notable contributions to polio eradication efforts in high-risk areas of Ethiopia as well as to immunization promotion and disease control more broadly.

Effective Partnership Mechanisms: A Legacy of the Polio Eradication Initiative in India and Their Potential for Addressing Other Public Health Priorities

While many factors contributed to the successful elimination of polio from India, partnership and coordination mechanisms at multiple levels that have evolved over the years have been an important element. The lessons learned from these partnership and coordination mechanisms among various stakeholders involved in service delivery, surveillance, community mobilization, and governance deserve documentation as a legacy of the program. This article discusses the various processes and techniques adopted to build strong partnerships and coordination mechanisms among stakeholders by optimizing their strengths and using opportunities that lead toward the eradication of polio from India. Secondary data and literature review of relevant reports, papers and documents were adopted as the methodology for developing this research article. The article provides a model conceptual framework for partnerships and applies that framework to the CORE Group Polio Project (CGPP) partnerships in India and the partnerships among stakeholders for polio eradication in India. The learnings and expertise of the CGPP in developing, managing, and nurturing partnerships can be adapted and replicated for elimination or controlling other diseases (especially those that are vaccine-preventable as well as tuberculosis and vector-borne diseases) and for ending preventable child and maternal deaths.

Improvements in Polio Vaccination Status and Knowledge about Polio Vaccination in the CORE Group Polio Project Implementation Areas in Pastoralist and Semi-Pastoralist Regions in Ethiopia

Strengthening routine immunization is one of the four prongs of the Global Polio Eradication Initiative. Achieving this requires improving immunization coverage in hard-to-reach areas. The objectives of this analysis were to assess levels of oral polio vaccination coverage and challenges in pastoral and semi-pastoral regions in Ethiopia. The analysis included vaccination-related data for children aged 12-23 months from the 2011 Ethiopian Demographic and Health Survey (EDHS) and from surveys carried out by the CORE Group Polio Project (CGPP) in 2013, 2015, and 2017. The EDHS data were from the entire regions (states) of Somali; Oromia; Southern Nations, Nationalities, and Peoples; Benshangul-Gumuz; and Gambella, whereas the CGPP data were for portions of these states where the CGPP was working and consisted entirely of pastoralist or semi-pastoralist populations. The overall polio immunization coverage rate showed upward trend from 39.6% in the 2011 EDHS to 72.6% for 2017 survey of children in the CGPP intervention areas. The evidence suggests that the CGPP was able to achieve increasing levels of coverage in the hardest-to-reach areas of these states and that the levels were higher than those achieved in the states as a whole. The strategies used by the CGPP/Ethiopia to increase coverage appear to have been effective. Other characteristics associated with full polio immunization included mother's religion and education, whether the mother had heard about polio, knowledge on the effect of many polio vaccine doses, and age at first polio immunization.

Effectiveness of a Census-Based Management Information System for Guiding Polio Eradication and Routine Immunization Activities: Evidence from the CORE Group Polio Project in Uttar Pradesh, India

Census-based management information systems (CB-MISs) bring strength and power to public health programs by providing current information about everyone in the population covered by the program. Such a system has been developed by the CORE Group Polio Project (CGPP) in India. This article assesses the effectiveness of the CGPP CB-MIS in the management of social and behavioral change interventions. It also assesses the feasibility of the CB-MIS for vital events registration. We describe the procedures of the CB-MIS and measure the outcomes of the CGPP by observing the trends of vaccination coverage in CGPP catchment areas over time. We also compute vital statistics from births and deaths registered through the CGPP CB-MIS and compare them with the estimates from the Civil Registration System of India using statistics from India's Sample Registration System in Uttar Pradesh as the "gold standard." The CB-MIS has helped the CGPP to manage its social and behavior change communication interventions effectively, and it has contributed to the increase in polio vaccine coverage facilitated by the CGPP. We also estimate that the CGPP's CB-MIS has registered 86% of births and 98% of infant deaths, a much higher level of registration than has been achieved by the Civil Registration System for the entire state of Uttar Pradesh. The CB-MIS has helped to make it possible for community-based health workers to make behavioral diagnoses of barriers to immunization and to overcome them. The CB-MIS also provides a robust platform for community-based health workers to register vital events.

Evaluation of the Functionality and Effectiveness of the CORE Group Polio Project's Community-Based Acute Flaccid Paralysis Surveillance System in South Sudan

This article describes the functionality and effectiveness of a community-based acute flaccid paralysis (AFP) surveillance system designed and implemented by the CORE Group Polio Project (CGPP) in conflict-affected and inaccessible areas of South Sudan between October 2015 and September 2017. The findings are based on interviews with key informants and focus group discussions as well as data from the CGPP and the management information system of the WHO. Through the implementing partners, the CGPP identified and built the capacity of the community-based surveillance (CBS) system, a system consisting of county supervisors, payam (sub-county) assistants, and community key informants. This structure played a critical role in the identification and reporting of AFP cases. The CGPP also established partnerships with other key players-local and international-to reach greater numbers of people, particularly displaced populations. Evaluation findings show an increase from 0.0% to 56.4% of cases reported through the CBS system between January 2016 and June 2017, and 80.0% of the cases reported within WHO standards of 24-48 hours were through the CBS system, whereas 20.0% were through the facility-based system. The CBS system also recorded an increase from 36.0% in 2014 to 92.0% in December 2016 for the number of counties that were reporting AFP. A CBS system is, therefore, a valuable complement to facility-based surveillance in insecure environments or where the population has limited access to facilities. Community-based surveillance systems also have the potential to identify cases of other infectious diseases of public health importance.

Involvement of Civil Society in India's Polio Eradication Program: Lessons Learned

India achieved the title of a polio-free country in March 2014 after a prolonged battle with the poliovirus that threatened millions of children and paralyzed scores of them. Although there has been considerable documentation of the technical strategies applied over the years, not enough has been written on the other warfront that had opened, namely, the battle between the people and the polio eradication program. This article describes the immense people-driven challenges to the polio program and the need for tailor-made and novel responses. This is when the U.S. Agency for International Development-funded CORE Group Polio Project (CGPP)/India stepped in and started work in 1999. The project, a consortium of CORE Group member international non-governmental organizations (NGOs) and local NGOs, formed a bridge between communities and the government program. This article describes how CGPP/India listened to the families and communities who refused to participate in the polio eradication program and then strategically addressed their concerns. These lessons from India can benefit other public health priorities that require civil society involvement, as most public health efforts do.

Lessons Learned from the CORE Group Polio Project and Their Relevance for Other Global Health Priorities

Despite numerous setbacks, the Global Polio Eradication Initiative has implemented various community strategies with potential application for other global health issues. This article reviews strategies implemented by the CORE Group Polio Project (CGPP), including pursuit of the missed child, microplanning, independent campaign monitoring, using community health workers and community mobilizers to build community engagement, community-based surveillance, development of the capacity to respond to other health needs, targeting geographic areas at high risk, the secretariat model for non-governmental organization collaboration, and registration of vital events. These strategies have the potential for contributing to the reduction of child and maternal mortality in hard-to-reach, underserved populations around the world. Community-based surveillance as developed by the CGPP also has potential for improving global health security, now a global health priority.

Contributions of Volunteer Community Mobilizers to Polio Eradication in Nigeria: The Experiences of Non-governmental and Civil Society Organizations

The Northern states were the epicenter of the wild poliovirus outbreak in Nigeria in 2016. To raise immunization coverage, particularly of polio, the Polio Eradication Initiative (PEI) in Nigeria introduced the use of nongovernmental organizations and volunteer community mobilizers (VCMs) through the CORE Group Polio Project (CGPP). The CGPP has been contributing to Nigeria's polio eradication efforts since 2013. This article explores the contributions of the 2,130 VCMs deployed in 31 participating local government areas in the five implementing CGPP states from 2014 to 2017 to increase awareness, understanding, and acceptance of polio immunization. Data for the study were collected from primary and secondary sources using five collection methods: a survey of VCM supervisors, focus group discussions with VCMs and their supervisors, key in-depth interviews with community stakeholders, case studies of specific best practices of VCMs, and a review of documents and records. A review of the data shows that the VCMs received comprehensive training on the importance of the PEI, routine immunization, Acute Flaccid Paralysis (AFP) surveillance, social mobilization and community engagement, use of behavior change communication tools, and interpersonal communication skills. According to the data collected, the VCMs used the following innovative strategies to ensure high vaccination coverage: house-to-house mobilization, community dialogues, compound meetings, community health camps, and tracking of non-compliant families, missed children, and dropouts. The involvement of VCMs in Nigeria's PEI efforts has been a pivotal contribution to reductions in the number of households rejecting polio immunization, the proportion of families with missed children, the proportion of families that were non-compliant, and the number of polio cases.

The CORE Group Partners Project in North East Nigeria: Community Engagement Strategies to Combat Skepticism and Build Trust for Vaccine Acceptance

In North East Nigeria, anti-immunization rumors and sentiments have negatively impacted the country's polio eradication efforts. Since 2014, the CORE Group Partners Project (CGPP) has leveraged local-level strategies to help change prevailing attitudes and behaviors by improving immunization acceptability in some of the most difficult settlements in Nigeria's states at highest risk for polio. The CGPP's communication model in Nigeria, in part, emphasizes the need to counter suspicion and address myths and misunderstandings by convening community dialogs and compound meetings, both of which serve as safe spaces for open discussion primarily aimed at addressing non-compliance. In the communities in Kaduna, Katsina, Kano, Borno, and Yobe states located in the CGPP implementation areas, there has been a consistent reduction in the number of missed children and consistent improvement in polio immunization uptake, providing evidence of the effectiveness of the CGPP communication model. The last case of wild poliovirus in Nigeria was detected in August 2016. Since Nigeria has gone more than 3 years without a case of wild poliovirus, the CGPP communication model promises to remain highly relevant in sustaining the community's awareness about immunizations that will be required to keep the population coverage of polio immunization high and, by extension, the herd immunity required to maintain zero transmission of poliovirus in Nigeria. This article describes the various strategies used to address noncompliance and provides examples of community engagement in Yobe state, which is one of the project's largest implementation areas.