Application of the Geographic Information System (GIS) in immunisation service delivery; its use in the 2017/2018 measles vaccination campaign in Nigeria

Oteri, Joseph; Hussaini, Mohammed Idi; Bawa, Samuel; Ibizugbe, Samuel; Lambo, Kikelomo; Mogekwu, Fred; Wiwa, Owen; Seaman, Vincent; Kolbe-Booysen, Olivia; Braka, Fiona; Nsubuga, Peter; Shuaib, Faisal

doi:10.1016/j.vaccine.2021.01.021

Cited by 9 publications

(9 citation statements)

References 13 publications

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“… [91] , [113] , [129] , [135] Using real-time performance data 4 Using real-time performance data improved coverage of vaccination campaigns (e.g., leveraging existing polio reporting structures; analyzing and report daily campaign data; providing feedback). [99] , [129] , [136] , [137] Coordinating campaign group members 1 Using WhatsApp for campaign group members improved planning, coordination, and data sharing. [79] a Ardo are leaders in Fulani (typically nomad) sociocultural settings.…”

Section: Resultsmentioning

confidence: 99%

Zero- or missed-dose children in Nigeria: Contributing factors and interventions to overcome immunization service delivery challenges

Mahachi

Kessels²,

Boateng

et al. 2022

Vaccine

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Section: Resultsmentioning

confidence: 99%

Zero- or missed-dose children in Nigeria: Contributing factors and interventions to overcome immunization service delivery challenges

Mahachi

Kessels²,

Boateng

et al. 2022

Vaccine

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“…Across the studies, a range of techniques were implemented as sensitivity analyses for the derived HFCA. These included deriving several HFCA for the same study area while using different; i) methods [23,34,59], ii) assumptions on healthcare-seeking behaviour [38], iii) population thresholds [80], iv) travel speed [71,88], v) radii for the buffer approach [54,73], vi) several teams validating the generated HFCA [81], and vii) using information criterion to select the best statistical model [35]. Finally, AccessMod and ArcMap were the most used software to derive HFCA.…”

Section: Resultsmentioning

confidence: 99%

“…Overall, in SSA, there is a scarcity of geocoded data on patients' residential addresses linked with the facility where care was sought which is the gold standard in defining a HFCA (Table 2). As a result, only six studies utilized such data [8][9][10]12,[83][84][85][86][87], while six other studies either relied on MoH-derived HFCA [26,28,36] or used participatory GIS to collect data needed to delineate spatial extents of HFCAs [13,[80][81][82]. The rest of the approaches used a variety of methods, with varying degrees of representativeness to delineate HFCA Three commonly used approaches; administrative boundaries, buffers, and Thiessen polygons are limited because they oversimplify socio-demographic, epidemiological and health-seeking characteristics of communities when deriving HFCA (Table 1).…”

Section: Discussionmentioning

confidence: 99%

Approaches to defining health facility catchment areas in sub-Saharan Africa

Macharia

Odhiambo

Mumo

et al. 2022

Preprint

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The geographical area around a health facility characterizing the population that utilizes some or all of its services, — a health facility catchment area (HFCA) —, forms the fundamental basis of estimating reliable population denominator for disease mapping and routine healthcare planning. Consequently, the approaches used to delineate the catchment area have a direct impact on the health of a population. To date, there is no systematic literature review documenting different approaches that have been used to define HFCAs while elucidating the implications on derived population denominators. To fill this gap, we systematically reviewed literature and documented approaches that have been used to define HFCA in sub —Saharan Africa (SSA). Simple to complex approaches have been used to define catchment areas in SSA with varying degrees of complexity and limitations in the last four decades. These approaches are mainly driven by lack of geocoded data on the residential address of care seekers and their care—seeking behaviour. To generate closer—to— reality HFCA, for robust disease mapping and healthcare planning, additional data and innovative approaches balancing between model complexity and routine programmatic use are required.

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“…Specifically, GIS mapping was used to geo-locate population centres to inform the positioning of fixed-sites for the campaign, and resulted in a reduction in the number of wards with zero vaccination coverage by comparison with states where standard population estimation approaches were used. The mechanisms by which this intervention were thought to have worked included [i] more accurate enumeration of target populations especially in the context of ongoing population movement, and [ii] a clearer view of ward boundaries than conventional (hand-drawn) approaches – both of which improved microplanning accuracy (65). The second study looked at the use of rapid monitoring approaches to gauge coverage and help improve campaign targeting in post-earthquake Haiti (66).…”

Section: Resultsmentioning

confidence: 99%

Strengthening vaccination delivery system resilience in the context of protracted humanitarian crisis: a realist-informed systematic review

Ismail¹,

Lam²,

Bell³

et al. 2022

Preprint

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BackgroundChildhood vaccination is among the most effective public health interventions available for the prevention of communicable disease, but coverage in many humanitarian settings is sub-optimal. This systematic review critically evaluated peer-review and grey literature evidence on the effectiveness of system-level interventions for improving vaccination coverage in protracted crises, focusing on how they work, and for whom, to better inform preparedness and response for future crises.MethodsRealist-informed systematic review of peer-reviewed and grey literature. Keyword-structured searches were performed in MEDLINE, EMBASE and Global Health, CINAHL, the Cochrane Collaboration and WHOLIS, and grey literature searches performed through the websites of UNICEF, the Global Polio Eradication Initiative (GPEI) and Technical Network for Strengthening Immunization Services. Results were independently double-screened for inclusion on title and abstract, and full text. Data were extracted using a pre-developed template, capturing information on the operating contexts in which interventions were implemented, intervention mechanisms, and vaccination-related outcomes. Study quality was assessed using the MMAT tool. Findings were narratively synthesised.Results50 studies were included, most describing interventions applied in conflict or near-post conflict settings in sub-Saharan Africa, and complex humanitarian emergencies. Vaccination campaigns were the most commonly addressed adaptive mechanism (n=17). Almost all campaigns operated using multi-modal approaches combining service delivery through multiple pathways (fixed and roving), health worker recruitment and training and community engagement to address both vaccination supply and demand. Creation of collaterals through service integration showed generally positive evidence of impact on routine vaccination uptake by bringing services closer to target populations and leveraging trust that had already been built with communities. Robust community engagement emerged as a key unifying mechanism for outcome improvement across almost all of the intervention classes, in building awareness and trust among crisis-affected populations. Some potentially transformative mechanisms for strengthening resilience in vaccination delivery were identified, but evidence for these remains limited.ConclusionA number of interventions to support adaptations to routine immunisation delivery in the face of protracted crisis are identifiable, as are key unifying mechanisms (multi-level community engagement) apparently irrespective of context, but evidence remains piecemeal. Adapting these approaches for local system resilience-building remains a key challenge.

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Application of the Geographic Information System (GIS) in immunisation service delivery; its use in the 2017/2018 measles vaccination campaign in Nigeria

Cited by 9 publications

References 13 publications

Zero- or missed-dose children in Nigeria: Contributing factors and interventions to overcome immunization service delivery challenges

Zero- or missed-dose children in Nigeria: Contributing factors and interventions to overcome immunization service delivery challenges

Approaches to defining health facility catchment areas in sub-Saharan Africa

Strengthening vaccination delivery system resilience in the context of protracted humanitarian crisis: a realist-informed systematic review

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