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Background: Schools based vaccination provide opportunity for the delivery of routine vaccines, using the school as the venue of delivery. During the 2017/2018 measles vaccination campaign, the school system stakeholders were systematically engaged for buy-in to vaccinate 9-59 months old children in Lagos State, Nigeria. This paper is a report of how the Lagos state school authority were engaged for the 2018 measles vaccination campaign. It also highlights the contribution of the engagement in the overall performance of the state looking at the vaccination coverage data and comparing that with the previous campaign. Method: We reported on the role of engaging the school health system in improving coverage using a descriptive mixed-method study design. The stakeholders cutting across the government, education sector, public and private schools were identified and engaged through coordination meetings, dialogues, lobby and sensitization to support vaccination in schools. We summarized the outcome of the engagement activities, analyzed the administrative, post-campaign coverage data and compared it with the 2016 measles supplemental activities coverage. Results: A total of 12,903 schools were used as venues (vaccination posts), while 22 sensitization meetings were held with school associations. About 80% of all eligible children vaccinated in the Local Government Areas (LGAs) during the 2018 Measles Vaccination Campain (MVC), received the vaccine at schools. The lowest proportion of children vaccinated at school was 45.0% in Oshodi LGA. Surulere LGA had the highest proportion of children vaccinated in schools (95.0%). Overall, Lagos state had a weighted average coverage of 93.8% for the post-campaign coverage survey. Conclusion: The implementation of the school engagement process for supplemental immunization activities contributed to achieving high vaccination coverage as most of the children aged 9-59 months were vaccinated in schools.

INTRODUCTION: All WHO regions have set measles elimination objective for 2020. To address the specific needs of achieving measles elimination, Nigeria is using a strategy focusing on improving vaccination coverage with the first routine dose of (monovalent) measles (MCV1) at 9 months, providing measles vaccine through supplemental immunization activities (children 9-59 months), and intensified measles case-based surveillance system.METHODS: We reviewed measles immunization coverage from population-based surveys conducted in 2010, 2013 and 2017-18. Additionally, we analyzed measles case-based surveillance reports from 2008-2018 to determine annual, regional and age-specific incidence rates.FINDINGS: Survey results indicated low MCV1 coverage (54.0% in 2018); with lower coverage in the North (mean 45.5%). Of the 153,097 confirmed cases reported over the studied period, 85.5% (130,871) were from the North. Moreover, 70.8% (108,310) of the confirmed cases were unvaccinated. Annual measles incidence varied from a high of 320.39 per 1,000,000 population in 2013 to a low of 9.80 per 1,000,000 in 2009. The incidence rate is higher among the 9-11 months (524.0 per million) and 12-59 months (376.0 per million). Between 2008 and 2018, the incidence rate had showed geographical variation, with higher incidence in the North (70.6 per million) compare to the South (17.8 per million).CONCLUSION: The aim of this study was to provide a descriptive analysis of measles vaccine coverage and incidence in Nigeria from 2008 to 2018 to assess country progress towards measles elimination. Although the total numbers of confirmed measles cases had decreased over the time period, measles routine coverage remains sub-optimal, and the incidence rates are critically high. The high burden of measles in the North highlight the need for region-specific interventions. The measles program relies heavily on polio resources. As the polio program winds down, strong commitments will be required to achieve elimination goals.

Background The global polio eradication initiative has made giant stride by achieving a 99% reduction in Wild poliovirus (WPV) cases, with Nigeria on the verge of being declared polio-free following over 36 months without a WPV. The initiative has provided multiple resources, assets and lessons learnt that could be transitioned to other public health challenges, including improving the quality and vaccination coverage of measles campaigns in order to reduce the incidences of measles in Nigeria. We documented the polio legacy and assets used to support the national measles campaign in 2017/2018. Methods We documented the integration of the measles campaign coordination with the Polio Emergency Operation Centre (EOC) at national and state levels for planning and implementing the measles SIA. Specific polio strategies and assets, such as the EOC incident command framework and facilities, human resource surge capacity, polio GIS resource These strategies were adapted and adopted for the MVC implementation overcome challenges and improve vaccination coverage. We evaluated the performance through a set process and outcome indicators. Results All the 36 states and Federal Capital Territory used the structure and resources in Nigeria and provided counterpart financing for the MVC 2017/ 2018. The 11 polio high-risk states deployed the use of GIS for microplanning process, while daily call-in data were tracked in 99.7% of the LGAs and 70,846 reports were submitted real-time by supervisors using Open data kit (ODK). The national coverage achieved was 87.5% by the post-campaign survey with 65% of states reporting higher coverage in 2018 compared to 2015. Conclusion Polio eradication assets and lessons learned can be applied to measles elimination efforts as the eradication and elimination efforts have similar strategies and programme implementation infrastructure needs. Leveraging these strategies and resources to support MVC planning and implementation resulted in more realistic planning, improved accountability and availability of human and fiscal resources. This approach may have resulted in better MVC outcomes and contributed to Nigeria’s efforts in measles control and elimination.

Introduction Globally, supplemental immunization activities (SIAs) are known to be a major strategy for attainment of the global measles elimination goal of less than one measles case per million population within a geographic area by the year 2020. Adequate planning is critical to the success of a vaccination campaign. To achieve a quality SIA implementation for effective interruption of measles transmission, the World Health Organization introduced the SIA Readiness Assessment Tool, which includes the readiness dashboard. It is a strategic planning tool used to ensure critical activities are completed before SIAs. Nigeria implemented a phased measles SIA in 2017/2018 and used the readiness assessment tool in the planning for the campaign. In this article, we report the use of the readiness assessment dashboard in the 2017/2018 measles SIA, we also reviewed its contributions to the outcome of the campaign looking at the post campaign coverage survey results for the states. Methods We conducted a retrospective review of the readiness assessment dashboard used during the 2017/2018 measles vaccination campaign in Nigeria. The readiness dashboard tool was designed using Microsoft Excel 2016. We reported results in frequencies and proportions using charts and tables. Results The states with 100% readiness a week prior to the campaign scored a post campaign coverage survey result of 84.6 – 96.5% with just one out of the eight states in this category getting a score below 90%. In the same vein, of the eight states that their readiness score at one week to the campaign was below 85%, six had post campaign coverage survey score of less than 90% with the highest score in this category being 92.3%. Some states with good readiness scores also had poor post campaign coverage survey which has been attributed to other factors other than readiness. Conclusion The readiness assessment dashboard for the measles vaccination campaign provided a platform for tracking states readiness. It is our view that a link between readiness assessment and coverage should be examined in future studies.

Background: From January to May 2019, large measles outbreaks affected all states in Nigeria and the Federal Capital Territory. Borno state was the most affected by the measles outbreak recording 15,237 suspected cases with the state capital of Maiduguri having 1,125 confirmed cases by March 2019. Twenty-two Local Government Areas (LGAs or Districts) and 37 internally displaced persons (IDPs) camps had been affected. In response to the situation, outbreak response immunization (ORI) was conducted. In addition to conventional vaccination teams, special teams were deployed in security compromised areas, areas with migrants, and for nomadic and IDPs. Here we describe the ORI and estimated the vaccine effectiveness (VE) for measles-containing vaccine (MCV) to assess the population-level impact. A post-campaign coverage survey (PCCS) was also carried out to assess the vaccination coverage.Methods: We reviewed the outbreak response-associated immunization activities, and conducted an analysis of the surveillance and the outbreak investigation reports. We evaluated VE of MCV by applying the screening-method using data from the measles outbreak and the latest mass vaccination campaign. The PCCS was conducted after completion of the ORI through a quantitative survey assessment in 1,800 households in 12 LGAs involved in the response.Results: Of the total 15,237 reported measles cases, 2,002 cases were line-listed and investigated, and 737 were confirmed for measles as at epidemiological week 9. Of the investigated cases 67.3% (n = 1,348) were between 9 and 59 months of age. Among the 737 confirmed cases, only 9% (n = 64) stated being vaccinated with at least 1 dose of MCV. The median VE for MCV is 96.7% (95%CI: 94.7 – 98.1), and 87.3% (95%CI: 71.0 – 95.2) when vaccine was received at 9 – 11. The aggregated weighted vaccination coverage is 85.7% (95%CI: 79.6 – 90.1).Conclusion: The experience in Borno demonstrates that adequate VE can be obtained in conflict-affected areas. In complex emergency affected by measles outbreaks, health authorities may consider integration with other health strategies and the engagement of security personnel as part of the ORI activities.

Background Measles is a highly infectious disease with great burden and implication on a displaced population with low immunity status. The disease can cause up to 140,000 deaths annually. Internal displacement during supplemental immunization activities often affects optimal reach and coverage of the campaign as people move and implementation and logistic plans are usually disrupted with attendant missed children. This study documented the process of extension of the measles vaccination campaign (MVC) 2018 for five internally displaced persons (IDPs) camps in Benue state, not previously in the microplan, to increase population herd immunity. Methods We obtained population figures and disease surveillance data for five IDPs camps and used it to conduct detailed microplanning to determine the requirement for the conduct of additional days of measles vaccination. Vaccination teams used fixed posts in the camps and temporary posts strategy in designated locations in the host communities. Results The estimated total population of the IDPs was 170,000 with MVC target population of 9374 which was not earlier planned for. There was reported measles outbreaks in IDP camps in both Guma and Makurdi Local Government areas (LGAs) during period of displacement. Microplans requirement determined 10,421 bundled measles vaccine, 30 health workers, 5 vehicles and 15 motorcycles. A total of 7679 out of 9374 (81.9%) of the eligible children aged 9–59 months were vaccinated during the 3 days of the campaign. Conclusion Non-inclusion of plans on internally displaced population in supplemental immunization activities (SIAs) microplans have a potential risk of vaccine preventable diseases (VPDs) outbreak. Future Measles Vaccination campaigns should take cognizance of internal displacement due to insecurity and other humanitarian emergencies.

Introduction The measles supplemental immunisation activity is an effective strategy that improves vaccination coverage and reduces measles-related morbidity and mortality. However, the lack of compliance with microplanning processes, contributes to improper estimation of resources needed for a good SIA in Nigeria. We described the microplanning verification process for 2017/2018 measles vaccination campaign and highlighted the contribution of selected variables to the output of the microplan. Methods We conducted microplanning verification in 2 phases. In Phase 1, we verified at least 30% of randomly selected microplans to assess compliance with the steps and processes of developing good microplans. In Phase 2 we conducted desk review of the entire states micoplans and verified some selected variables at the ward level to corroborate the findings of the microplans. We collected data using open data kit and verification checklist. We conducted data analysis using SPSS and Microsoft Excel version 2016. Results All states in Nigeria verified their wards’ microplans, 21 states (57%) verified more than 30% ,16 states (43%) verified less than 30%, Kebbi State verified the lowest (5.3%). Over 90% of microplans verified complied with the microplanning processes. We observed that overall, there was no significant difference in the number of target population, vaccination teams and qualified vaccinators after the verification process. Conclusion The microplans for 2017/2018 measles vaccination campaign were developed according to the required procesesses, the target population, vaccination teams and qualified vaccinators were physically and realistically estimated. Adherence to microplanning processes is critical to the success of immunization programs.

Background Immunisation activities generate sharps and infectious non-sharp waste that have harmful impact on the community and health care workers if disposed of improperly, leading to carbon mono oxide (CO) emissions which contribute to global warming. Health care waste is not effectively managed, especially in some developing countries. However, measles supplemental immunisation activities (SIAs) are used to strengthen routine immunisation system, including waste management. The waste management planning provides an opportunity to build capacity, mobilize resources and strengthen structures to ensure continual disposal of routine immunisation waste. Methods We reviewed the Kebbi State and LGA routine immunisation waste management situation and identified existing gaps; developed and implemented the plan for waste management, including strengthening routine immunisation waste management. The process included, reactivation of measles technical coordination committee, mobilizing resources for funding, and sustenance of immunisation waste management. The health care workforce was trained in safe immunisation waste disposal practices. Results Immunisation waste management committee and the structure was established and strengthened at the state and LGA levels and a total cost of 11,710.70 USD was expended on injection waste management, with an average cost per injection of 0.01 USD. A total of 11,829 safety boxes were incinerated in the state, including those generated from routine immunisation sessions. Twenty-one Local Immunisation Officers, 1097 and 2192 team supervisors and healthcare worker vaccinators respectively were trained on immunisation waste disposal. Conclusion Immunisation waste management strategies protect healthcare workers and reduce the adverse impact on the environment. Improving key areas such as human and financial resources ensures accountability towards sustainable healthcare waste management.

Highlights • Three surveys since 2013 show persistently low MCV coverage in much of northern Nigeria. • The 2017–18 measles SIA reached higher and more homogeneous coverage than seen previously. • Geospatial differences exist in the SIA’s reach of previously unvaccinated children. • Nearly all the country is far from the goal of 95% coverage with ≥ 2 doses of MCV. • Routine services need strengthening nationwide, especially in the north., Measles vaccination campaigns are conducted regularly in many low- and middle-income countries to boost measles control efforts and accelerate progress towards elimination. National and sometimes first-level administrative division campaign coverage may be estimated through post-campaign coverage surveys (PCCS). However, these large-area estimates mask significant geographic inequities in coverage at more granular levels. Here, we undertake a geospatial analysis of the Nigeria 2017–18 PCCS data to produce coverage estimates at 1 × 1 km resolution and the district level using binomial spatial regression models built on a suite of geospatial covariates and implemented in a Bayesian framework via the INLA-SPDE approach. We investigate the individual and combined performance of the campaign and routine immunization (RI) by mapping various indicators of coverage for children aged 9–59 months. Additionally, we compare estimated coverage before the campaign at 1 × 1 km and the district level with predicted coverage maps produced using other surveys conducted in 2013 and 2016–17. Coverage during the campaign was generally higher and more homogeneous than RI coverage but geospatial differences in the campaign’s reach of previously unvaccinated children are shown. Persistent areas of low coverage highlight the need for improved RI performance. The results can help to guide the conduct of future campaigns, improve vaccination monitoring and measles elimination efforts. Moreover, the approaches used here can be readily extended to other countries.

Introduction The introduction of new vaccines highlights concerns about high vaccine wastage, knowledge of wastage policies and quality of stock management. However, an emphasis on minimizing wastage rates may cause confusion when recommendations are also being made to reduce missed opportunities to routinely vaccinate children. This concern is most relevant for lyophilized vaccines without preservatives [e.g. measles-containing vaccine (MCV)], which can be used for a limited time once reconstituted. Methods We sampled 54 health facilities within 11 local government areas (LGAs) in Nigeria and surveyed health sector personnel regarding routine vaccine usage and wastage-related knowledge and practices, conducted facility exit interviews with caregivers of children about missed opportunities for routine vaccination, and abstracted vaccine stock records and vaccination session data over a 6-month period to calculate wastage rates and vaccine vial usage patterns. Results Nearly half of facilities had incomplete vaccine stock data for calculating wastage rates. Among facilities with sufficient data, mean monthly facility-level wastage rates were between 18 and 35% across all reviewed vaccines, with little difference between lyophilized and liquid vaccines. Most (98%) vaccinators believed high wastage led to recent vaccine stockouts, yet only 55% were familiar with the multi-dose vial policy for minimizing wastage. On average, vaccinators reported that a minimum of six children must be present prior to opening a 10-dose MCV vial. Third dose of diphtheria-tetanus-pertussis vaccine (DTP3) was administered in 84% of sessions and MCV in 63%; however, the number of MCV and DTP3 doses administered were similar indicating the number of children vaccinated with DTP3 and MCV were similar despite less frequent MCV vaccination opportunities. Among caregivers, 30% reported being turned away for vaccination at least once; 53% of these children had not yet received the missed dose. Discussion Our findings show inadequate implementation of vaccine management guidelines, missed opportunities to vaccinate, and lyophilized vaccine wastage rates below expected rates. Missed opportunities for vaccination may occur due to how the health system’s contradicting policies may force health workers to prioritize reduced wastage rates over vaccine administration, particularly for multi-dose vials.

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Emergency Operations Centers (EOCs) have been credited with driving the recent successes achieved in the Nigeria polio eradication program. EOC concept was also applied to the Ebola virus disease outbreak and is applicable to a range of other public health emergencies. This article outlines the structure and functionality of a typical EOC in addressing public health emergencies in low-resource settings. It ascribes the successful polio and Ebola responses in Nigeria to several factors including political commitment, population willingness to engage, accountability, and operational and strategic changes made by the effective use of an EOC and Incident Management System. In countries such as Nigeria where the central or federal government does not directly hold states accountable, the EOC provides a means to improve performance and use data to hold health workers accountable by using innovative technologies such as geographic position systems, dashboards, and scorecards.

Objective: To investigate the epidemiological trends of measles in the Littoral, North-west, South-west and Western regions of Cameroon in order to improve measles control. Design and Methods: Cross-sectional study of retrolective data collected on cases of measles from January 1997 to April 2003 and stored in registers at regional levels. Child age, immunization and disease status, complications and outcomes were recorded. Results: 33,268 cases of measles were registered. The trend was endemo-epidemic with outbreaks occurring between Feb- ruary and April. The average incidence rate was 4.8‰ per year with 4.1‰ reported in 1998, 5.8‰ in 2001, and 0.9‰ in 2002. Complete data sets for 16,637 cases indicate that 47.4% were children aged 9 to 59 months. Those less than 9 months represented 15.2% of the cases. More than half (415 cases) of the 766 cases with known immunization status (54.2%) representing 2.5% of the 16,637 total cases had received the measles vaccine. Complications were frequent in the Western (53.7%) and the Littoral (33.7%) regions and 53.3% of all complications were bronchopulmonary infections. The global case fatality rate was 1.6%, and 2.1% in children less than 9 months with a significant tendency to decrease with age (p

Background Transmission of wild poliovirus (WPV) has never been interrupted in Afghanistan, Pakistan, and Nigeria. Since 2003, infections with WPV of Nigerian origin have been detected in 25 polio-free countries. In 2012, the Nigerian government created an emergency operations center and implemented a national emergency action plan to eradicate polio. The 2013 revision of this plan prioritized (1) improving the quality of supplemental immunization activities (SIAs), (2) implementing strategies to reach underserved populations, (3) adopting special approaches in security-compromised areas, (4) improving outbreak response, (5) enhancing routine immunization and activities implemented between SIAs, and (6) strengthening surveillance. This report summarizes implementation of these activities during a period of unprecedented insecurity and violence, including the killing of health workers and the onset of a state of emergency in the northeast zone. Methods This report reviews management strategies, innovations, trends in case counts, vaccination and social mobilization activities, and surveillance and monitoring data to assess progress in polio eradication in Nigeria. Results Nigeria has made significant improvements in the management of polio eradication initiative (pei) activities with marked improvement in the quality of SIAs, as measured by lot quality assurance sampling (LQAS). Comparing results from February 2012 with results from December 2013, the proportion of local government areas (LGAs) conducting LQAS in the 11 high-risk states at the ≥90% pass/fail threshold increased from 7% to 42%, and the proportion at the 80%-89% threshold increased from 9% to 30%. During January-December 2013, 53 polio cases were reported from 26 LGAs in 9 states in Nigeria, compared with 122 cases reported from 13 states in 2012. No cases of WPV type 3 infection have been reported since November 2012. In 2013, no polio cases due to any poliovirus type were detected in the northwest sanctuaries of Nigeria. In the second half of 2013, WPV transmission was restricted to Kano, Borno, Bauchi, and Taraba states. Despite considerable progress, 24 LGAs in 2012 and 7 LGAs in 2013 reported ≥2 cases, and WPV continued to circulate in 8 LGAs that had cases in 2012. Campaign activities were negatively impacted by insecurity and violence in Borno and Kano states. Conclusions Efforts to interrupt transmission remain impeded by poor SIA implementation in localized areas, anti-polio vaccine sentiment, and limited access to vaccinate children because of insecurity. Sustained improvement in SIA quality, surveillance, and outbreak response and special strategies in security-compromised areas are needed to interrupt WPV transmission in 2014.

Curative and preventive care utilization in Bamako Initiative health centres in Guinea and Benin increased significantly. Service based data and household survey results are compared and interpreted to evaluate the equity aspects of the Bamako Initiative programmes in these settings. Improvements in the use of preventive services are shared by the richer and poorer groups of the population. Inequities are more apparent regarding curative care. An important part of the population is not using Bamako Initiative Health Centres for financial reasons. However the poor were found to use these Health Centres relatively more than richer socio-economic groups. Challenges of the future are identified and recommendations made as to how to tackle the problem of true indigence. (authors)