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Mapping vaccination coverage to explore the effects of delivery mechanisms and inform vaccination strategies

Author

Listed:
  • C. Edson Utazi

    (University of Southampton
    University of Southampton)

  • Julia Thorley

    (University of Southampton)

  • Victor A. Alegana

    (University of Southampton
    Flowminder Foundation)

  • Matthew J. Ferrari

    (The Pennsylvania State University)

  • Saki Takahashi

    (Princeton University)

  • C. Jessica E. Metcalf

    (Princeton University)

  • Justin Lessler

    (Johns Hopkins Bloomberg School of Public Health)

  • Felicity T. Cutts

    (London School of Hygiene and Tropical Medicine)

  • Andrew J. Tatem

    (University of Southampton
    Flowminder Foundation)

Abstract

The success of vaccination programs depends largely on the mechanisms used in vaccine delivery. National immunization programs offer childhood vaccines through fixed and outreach services within the health system and often, additional supplementary immunization activities (SIAs) are undertaken to fill gaps and boost coverage. Here, we map predicted coverage at 1 × 1 km spatial resolution in five low- and middle-income countries to identify areas that are under-vaccinated via each delivery method using Demographic and Health Surveys data. We compare estimates of the coverage of the third dose of diphtheria-tetanus-pertussis-containing vaccine (DTP3), which is typically delivered through routine immunization (RI), with those of measles-containing vaccine (MCV) for which SIAs are also undertaken. We find that SIAs have boosted MCV coverage in some places, but not in others, particularly where RI had been deficient, as depicted by DTP coverage. The modelling approaches outlined here can help to guide geographical prioritization and strategy design.

Suggested Citation

  • C. Edson Utazi & Julia Thorley & Victor A. Alegana & Matthew J. Ferrari & Saki Takahashi & C. Jessica E. Metcalf & Justin Lessler & Felicity T. Cutts & Andrew J. Tatem, 2019. "Mapping vaccination coverage to explore the effects of delivery mechanisms and inform vaccination strategies," Nature Communications, Nature, vol. 10(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09611-1
    DOI: 10.1038/s41467-019-09611-1
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    Cited by:

    1. Sebastien Bourdin & Sevgi Eda Tuzcu & Esra Satıcı, 2023. "Explaining COVID‐19 vaccine uptake: A spatial sociodemographic study in Turkey," Papers in Regional Science, Wiley Blackwell, vol. 102(2), pages 307-329, April.
    2. Sylwia Krzysztofowicz & Katarzyna Osińska-Skotak, 2021. "The Use of GIS Technology to Optimize COVID-19 Vaccine Distribution: A Case Study of the City of Warsaw, Poland," IJERPH, MDPI, vol. 18(11), pages 1-22, May.

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