Curbing an outbreak of circulating vaccine derived polio virus type 2 in Dolo Zone, Somali Region, Ethiopia: response to outbreak

Introduction

although the oral polio vaccine prevents virus transmission from person to person, it is crucial for poliovirus eradication. The continued use of live attenuated poliovirus poses an ongoing risk of circulating Vaccine Derived Poliovirus-2 (cVDPV2) outbreaks. This study assesses the response to the cVDPV2 outbreak in Dollo Zone, Somali Region, Ethiopia.

Methods

after examining and verifying the occurrence of the outbreak, a team was established and prepared by resource mobilization, advocacy, and social mobilization. The group endorsed a four-step vaccination strategy, first the rapid response within 14-days by vaccinating a monovalent oral poliovirus-2 (mOPV2) to all under 5-year children in the Zone. The team further enhanced Supplementary Immunization Activities (SIA) for all under-five children with repeated doses of vaccines. At the same time, the team initiated community-based surveillance of Acute Flaccid Paralysis (AFP).

Results

in the rapid-response immunization, an average of 91.4% of 0-11 months old and 90.2% of 12-59 months children were vaccinated. In SIA-1, the team vaccinated an average of 88% and 97%, and in SIA-2, 94.8% and 97.6% of children 0-11 months old and 12-59 months old, respectively. The active community-based surveillance of AFP revealed the existence of the disease in a sporadic form, of which two cases were found in Bokh district.

Conclusion

the response to curb the outbreak of cVDPV2 has shown a flow of actions to combat the outbreak. Strengthening and formation of response teams at different levels, resource mobilization, advocacy, and social mobilization are all essential components in maximizing the response to the outbreak.

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.

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.

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.

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.

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

The CORE Group Polio Project (CGPP) has contributed to polio eradication by successfully engaging civil society, particularly the non-governmental organization (NGO) community. This engagement, which began with a grant from the U.S. Agency for International Development in 1999, has contributed to improvements in routine immunization programs, polio campaign quality, and surveillance for acute flaccid paralysis in many challenging geographic areas. The CGPP has worked closely with polio eradication partners in a collaborative and supportive role. The CGPP has focused largely on high-risk areas with marginalized or hard-to-reach populations where health systems and immunization programs have also been weak and where transmission of poliovirus had not been stopped. The CGPP has engaged local civic leaders and communities in ways to complement top-down vertical efforts of ministries of health and other partners in the Global Polio Eradication Initiative. The CGPP has developed innovative strategies to detect cases using community-based surveillance, promoted independent campaign monitoring, established cross-border initiatives, and developed a strong and creative cadre of community mobilizers to track missed children and deliver behavior change education. Many of the innovations and approaches that the CGPP helped to develop are now being replicated by governments and international agencies to tackle other public health priorities in underserved and marginalized communities around the world. This article is the first in a series of articles describing the work of the CGPP. Because the article describes the work of more than 40 NGOs in 11 countries over 20 years, it provides only an overview, leaving many important details and variations of the CGPP's work to be described elsewhere, including in other articles included in this series.

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.

Trust, Communication, and Community Networks: How the CORE Group Polio Project Community Volunteers Led the Fight against Polio in Ethiopia's Most At-Risk Areas

The last case of wild poliovirus in Ethiopia was reported in 2014. Until the disease is eradicated globally, the risk of reimportation remains high. In 1999, the CORE Group Polio Project (CGPP) began its community-centered polio eradication efforts in Ethiopia, using community volunteers (CVs) to ensure that no child has missed polio vaccine. This article documents the efforts of CVs and highlights innovative strategies, successes, and contributions. Qualitative data were collected from the CGPP implementation areas in 85 border woredas (districts) of Benishangul-Gumuz; Gambella; Oromia; Southern Nations, Nationalities, and Peoples' Region; and Somali. A total of 151 in-depth interviews were conducted with CVs, parents, CGPP partners, and project stakeholders. Results of the study showed that CVs secured the buy-in of community members through open and fair eligibility and selection processes, thereby ensuring representation of community needs and perspectives. Community-driven participation consisted of identifying and choosing credible, trusted individuals who were willing to actively engage as caretakers of the community. Community volunteers then received specialized training and supportive supervision to build and expand their command of child health and vaccination information and interpersonal skills, fortifying the legitimacy of health messages and supporting the community's sense of collective efficacy. The robust network of CVs built by the CGPP continues to effectively reach the most remote, rugged, and underserved areas of Ethiopia. Stakeholders credit the CGPP with playing a significant role in keeping Ethiopia polio-free and increasing the population coverage of polio and routine immunizations.

Acute flaccid paralysis surveillance status and community awareness in pastoralist and semi-pastoralist communities of Ethiopia

BACKGROUND

Acute flaccid paralysis (AFP) surveillance is an essential component of the polio eradication strategy. The last laboratory confirmed wild poliovirus in Ethiopia was identified in April 2008. However, the country remains at risk for re-infection because of a number of silent areas and borders with high risk countries.

OBJECTIVE

Assess AFP surveillance status and community perception on AFP/Polio in semi pastoralist and pastoralist areas.

METHODS

Community and facility based cross-sectional survey was conducted complemented by Focus Group Discussions (FGD) from March - April, 2012. The study populations included District and health center AFP surveillance focal persons, WHO surveillance officers, community and religious leaders and women who delivered in the previous one year in purposively selected districts in Core Group Polio Project Implementation areas of Ethiopia.

RESULT

Interviews with health center and district AFP surveillance focal persons revealed deficiencies in training, supervision and feedback. The performance of AFP detection varied in the study districts and knowledge about polio and AFP detection was found to be low in the study communities.

CONCLUSION

There is a need to strengthen awareness of communities through targeted information, education and communication (IEC) interventions. Regular need-based training and supportive supervision should be conducted, involving all stakeholders including religious leaders and community leaders at each step of the awareness creation process, case detection and reporting and by giving special emphasis to silent and border districts.

Knowledge of mothers on poliomyelitis and other vaccine preventable diseases and vaccination status of children in pastoralist and semi-pastoralist areas of Ethiopia

BACKGROUND

Awareness and service utilization are key to polio eradication.

OBJECTIVE

Assess the knowledge of mothers on polio and other vaccine preventable diseases, and utilization of immunization services in pastoralist and semi-pastoralist areas in Ethiopia.

METHODS

A community-based cross sectional study using a multistage cluster sampling method involving women who delivered during the previous one year was conducted.

RESULTS

A total of 600 women were interviewed. Three hundred-and-five (50.8%) women said they knew what polio was. The time to initiate polio vaccination was correctly indicated to be at birth or within 2 weeks of birth by 224 (37.4%) women. Four hundred forty five (74.2%) women said they did not know how polio is transmitted Polio birth dose (Polio 0) and Polio 3 vaccine coverage were estimated at 32% and 37% respectively. Adjusting for other factors, knowledge of when polio vaccination starts was significantly associated with having a child vaccinated for Polio 3 (OR 95% CI = 3.45 (2.33- 5.11).

CONCLUSION

Knowledge of mothers about polio is low and a little more than one third were aware of when the initial vaccine dose should be administered. Providing detailed information on polio and the recommended vaccination schedule can contribute to improve immunization and hasten polio eradication.

Newborn tracking for polio birth dose vaccination in pastoralist and semi-pastoralist CORE Group Polio Project implementation districts (woredas) in Ethiopia

BACKGROUND

Estimates of immunization coverage rates in Ethiopia varied widely, but were consistent in that polio birth dose coverage is much lower than other antigens, particularly in semi-pastoralist and pastoralist areas.

OBJECTIVE

Examine pregnancy and child delivery practices and identify mechanisms for improving polio birth dose coverage in CORE Group Polio Project implementation districts.

METHODS

A community based cross sectional study was conducted in March - April 2012 involving 600 women who delivered in the previous one year. Interviews were also conducted with key informants, Traditional Birth Attendants and, Health Extension Workers complemented by Focus Group Discussions (FGDs) with community leaders.

RESULTS

Three hundred twelve women (52.0%) had attended antenatal care at least once during the last pregnancy. Five hundred forty nine women (91.5%) delivered their last baby at home. Polio coverage was 29.7%, 19.7%, and 32.7% by history, by card and by history or card respectively. Antenatal care attendance was the main predictor of polio birth does utilization adjusted for other factors. Discussion with FGD participants revealed the prevailing knowledge on polio including misconceptions, and immunization service utilization.

CONCLUSIONS

Newborn tracking for improving polio birth dose requires raising awareness among women and the community at large, strengthening mechanisms for identification and follow up of pregnant women at the community level, coordinating and strengthening the activities of front line health workers, and improving accessibility of health service.

Cross-border wild polio virus transmission in CORE Group Polio Project areas in Ethiopia

BACKGROUND

Ethiopia interrupted indigenous polio transmission in April 2008. However, it remains at risk of reinfection because of importation of polio virus from bordering countries.

OBJECTIVES

Assess polio immunization activities and risk of wild polio virus (WPV) importation in CORE Group Polio Project (CGPP) international border areas of Ethiopia.

METHODS

The study employed key informant interviews of community volunteers (CV), health extension workers (HEWs), program coordinators, managers and other stakeholders, as well as focus group discussions (FGDs) with community and religious leaders in six border districts (woredas) located in three regions of the country. It was conducted in March and April 2012.

RESULTS

Thirty-three key informant interviews and six FGDs were conducted. Immunization coverage was reported to be low and misconceptions about causes and transmission of polio were abundant. There was extensive cross-border movement of people for various reasons and mechanisms for prevention of cross-border polio transmission was almost non existent. AFP case detection and reporting was generally low.

CONCLUSION AND RECOMMENDATIONS

Cross-border transmission of polio can occur from several frontiers. Suggestions to control cross-border polio transmission included establishing and/or strengthening cross-border collaboration with responsible counterparts in neighboring countries by using existing cross-border forums and structures to create community awareness, share information and resources, design and implement strategies for identification of children who are eligible for vaccination or suspected AFP cases. In addition districts should coordinate supplemental immunization activities to coincide with when adjacent districts in neighboring countries are carrying out similar actions.

Factors associated with immunization coverage among children age 12-23 months: the case of Zone 3, Afar Regional State, Ethiopia

BACKGROUND

Strengthening routine immunization is one of the four pillars of the global polio eradication initiative.

OBJECTIVES

To determine the magnitude and factors associated with vaccination coverage among children age 12 -23 months in Zone 4 of Afar Regional State, Ethiopia.

METHODS

A community based cross-sectional study using the WHO modified cluster sampling method was carried out in Zone 3 of Afar Regional State between January 01 and May 31, 2009. The calculated sample size was 762 and 740 were included in the analysis of vaccination status.

RESULTS

A total of 740 children aged 12-23 months were included in the study. Three hundred forty two (46%) respondents reported that their children were vaccinated at least once. Polio 3 coverage was found to be 35.0% and full immunization coverage was 20.6%. Respondents who could read and write had a higher likelihood of getting their children vaccinated compared to those who could not read or write [AOR = 0.18, 95% CI: 0.08-0.34]. Similarly age of the mother, husband's attitude and joint decision making by husband and wife were significantly associated with child immunization adjusted for other factors.

CONCLUSION

The population immunity for polio measured by routine polio vaccine uptake in the study area indicated a high risk for wild polio virus outbreaks following importations, and the emergence and spread of circulating vaccine- derived polio virus. Literacy, positive attitude towards immunization and decision power are important factors to be addressed.

Assessment of cold chain status for immunization in central Ethiopia

BACKGROUND

In order to achieve immunization goals, two factors are necessary; the delivery of potent vaccines to children through properly maintained cold chain systems and achieving high vaccine coverage. Maintaining quality of vaccines has been one of the main challenges of immunization programs in Africa.

OBJECTIVE

To assess the cold chain status and practices in 116 health facilities located in three CCRDA/CORE Group Ethiopia operational districts (woredas).

METHODOLOGY

An institution based cross-sectional study was conducted in December 2011 and January 2012 in three districts (woredas) of Oromiya, SNNP and Amhara Regions of Ethiopia, data was collected from 116 health facilities and from the same number of immunization service providers. Multiple logistic regression analysis was carried out to identify factors related to knowledge of cold chain management.

RESULT

Of 116 visited facilities, only 22 (19%) had functional refrigerators. The remaining facilities transported vaccines from nearby facilities having functional refrigerators. Complete temperature recording of the last month was observed in 13 (59.1%) facilities. Of 22 functional fridges, the thermometer reading was found to be outside the recommended range in 6 (27.3%) on the date of data collection. Vaccine storage in the refrigerator was not proper in 12 (54.5%) facilities. Sixty-five (56%) health workers had satisfactory knowledge on cold chain management. Professional qualification and year of service in the immunization program showed a statistically significant association with knowledge of cold chain management (P < 0.05).

CONCLUSION AND RECOMMENDATIONS

Vaccines in some facilities were found to be at a high risk of losing their potency. There is an urgent need to improve knowledge and practice on cold chain management through improved supervision and training.

Linking community volunteer surveillance focal persons with health extension workers on polio surveillance

BACKGROUND

Inadequate involvement of community volunteers in vaccine preventable disease surveillance and lack of uniformity in the reporting channel.

OBJECTIVE

To identify factors affecting linkage of Community Volunteers Surveillance focal Persons (CVSFP) and HEWs/Woreda Health Offices, identify feasible and acceptable solution for strong linkage and sustainable implementation of the project.

METHOD

A qualitative study based on purposive convenient sampling method involving CVs, HEW, responsible officials on Health Extension Program (HEP) and CORE Group Ethiopia Polio Partner NGO's focal persons was conducted.

RESULT

A total of 26 discussants were interviewed in the study woredas. Training of community volunteers at enrollment was not uniform. Health Extension workers and CVs plan together, visit the community together, have periodic meeting and both are supervised by the woreda health office. Community volunteers report to HEWs or woreda health office. The HEWs complain that CVs are not available as required; some are not reporting to HEWs, HEWs are not involved in the training of volunteers. Community volunteers complain distant travel to woreda and kebele to report and for meeting.

CONCLUSION

The day to day working relation, the meeting forums, woreda level monitoring and feedback mechanism shows how well the work of CVs and relation with HEWs is recognized. No standard training procedure is followed. Volunteers are used as guide; distance travel with no/inadequate incentive can reduce commitment of volunteers. Misunderstanding of HEWs about the volunteers' private/obligatory work was a factor for loose relation.

Knowledge and practice of frontline health workers (Health Extension Workers and Community Volunteer Surveillance Focal Persons) towards acute flaccid paralysis (AFP) case detection and reporting in pastoralist and semi-pastoralist areas of Ethiopia

BACKGROUND

Front line workers in pastoralist and semi pastoralist areas are expected to play a vital role in detecting cases of Acute Flaccid Paralysis.

OBJECTIVE

Assess knowledge and practice of Heath Extension Workers (HEWs) and Community Volunteer Surveillance Focal Persons (CVSFPs) on AFP case detection and reporting.

METHODS

A cross sectional survey involving 70 Health Extension Workers (HEWs) and 71 Community Volunteer Surveillance Focal Persons (CVSFPs) was conducted in 9 districts in Core Group Polio Project Implementation areas of Ethiopia from March 1-April 30, 2013. Data were entered and analyzed using SPSS version 17.

RESULTS

Thirty four HEWs (48.6%) searched for AFP cases by going from house to house, while 27 (38.6%) did not perform any function specific to AFP surveillance. Twenty (28.2%) and 7 (9.9%) of CVSFPs respectively, indicated using a case definition of AFP which included paralysis and acute paralysis. Nine (12.7%) of the CVSPF provided responses that did not include paralysis while 22 CVSFPs (31.0%) did not know the case definition of AFP. Three HEWs and 9 CVSFPs claimed to have detected and reported AFP cases. Thirty-eight (53.5%) CVSFPs had received training on community-based surveillance while 33 (46.5%) had none. Thirty nine (54.9%) of the CVSFPs reported having received supervision during the last six months, 22 (31.0%) of whom reported having received feedback.

CONCLUSION

Inadequate pertinent knowledge on AFP and inadequate training and supervision appear to be obstacles for effective AFP detection by front line health workers in the study communities.

Morbidity pattern among refugees in Eastern Ethiopia

The population of refugees in eastern Africa and the health problems affecting them are enormous. This study was conducted to document the morbidity pattern among refugees in eastern Ethiopia. The study was conducted to document the morbidity pattern among refugees in eastern Ethiopia. The study utilized a descriptive cross sectional design. Data were collected using a uniform format from all refugee camps in the eastern Ethiopia. Respiratory tract infection and diarrhoeal diseases were identified to be the major causes of morbidity, accounting for 31.8% and 27.3% respectively in children under five years, and for 34.9% and 8.5% respectively in the other age groups. The findings were consistent with other studies done in refugee populations elsewhere. Universality of the problems was noted and a coordinated multidisciplinary approach is recommended to alleviate the health problems of refugees.

High school students' knowledge, attitude and practice of contraception in Harer town, eastern Ethiopia

A survey of knowledge, attitude and practice of contraception was carried out among 1,674 students (mean age 17.4 years) in Harer town, eastern Ethiopia. Fifty-four per cent of the students spontaneously mentioned a modern contraceptive method when asked, but large numbers of students did not know the answers to specific questions about prevention of pregnancy. The students were receptive to more information in schools on sexuality and contraception. Overall, 20% of females and 65% of males admitted to having had sexual intercourse at least once. Among sexually active females, 60% said they were using a contraceptive method. However, 76% of these were using only the calendar method. Twenty per cent of the sexually experienced female students had been pregnant, and of these 56% had elected for induced abortions. If only unmarried students are considered, 75% of those who had been pregnant had had an induced abortion. Since induced abortions are not legal in Ethiopia, these students are at high risk for complications of abortions.