Innovative approach in assessing the children's immunization status when it cannot be documented

Authors

  • Jerome Ateudjieu Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé; Division of Health Operations Research, Ministry of Public Health; Department of Public Health, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang, Dschang
  • Ketina Hirma Tchio-Nighie Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé https://orcid.org/0000-0003-4887-8931
  • Martin Ndinakie Yakum Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé
  • André Pascal Goura Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé
  • Lapia Amada Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé
  • Isaac Sonkoua Department of Health Research, Meilleur Accès aux soins de Santé (M.A. SANTE), Yaoundé
  • Blaise Wakam Nkontchou Expanded Program of immunization, Ministry of Public Health, Yaounde; Bill and Melinda Gates Foundation
  • Bruno Kenfack Department of Gynecology and Obstetrics, Faculty of Medicine and Pharmaceutical Sciences, University of Dschang; Department of Gynecology and Obstetrics, Dschang District Hospital, Dscang

DOI:

https://doi.org/10.4081/jphia.2023.2450

Keywords:

Immunization coverage documentation, coverage surveys, Cameroon, tracking immunization status

Abstract

During surveys, it is recommended that children immunization status should be based on immunization documents. It has been noted that in some communities, a number of children are claimed to be vaccinated but have no evidence of vaccination. This work is proposed to estimate routine immunization coverage in children based on both documented vaccination and the tracking of undocumented immunization. It was a community‑based survey targeting children aged 0‑59 months in which the immunization status of children was assessed based on vaccination documents and based on a questionnaire tracking immunization sites and period for children with undocumented vaccination. The vaccination coverage and completeness were estimated from data collected in immunization cards and re‑estimated after tracking the immunization status of children with no immunization cards. Of 1435 children reached in households, 1430 (99.7%) were included. Of 1072 children aged 12‑59 months, 194 (18.1%) received DPT‑Hi+Hb 3 with evidence and 399 (37.2%) with evidence and tracking. In the same age group, the dropout rate from DPT‑Hi+Hb 1 (157 doses administered) to DPT‑Hi+Hb 3 (127 doses administered) with evidence was 19.1% and 42.4% with evidence and tracking. The tracking of immunization status in children with no evidence of vaccination allows to determine their immunization status and to improve the reliability of the estimated vaccination coverage. This strategy could be adopted to be part of the planning and implementation of vaccination coverage surveys of EPI vaccines.

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Published

29-08-2023

How to Cite

Ateudjieu, J., Tchio-Nighie, K. H., Ndinakie Yakum, M., Goura, A. P., Amada, L., Sonkoua, I., Wakam Nkontchou, B., & Kenfack, B. (2023). Innovative approach in assessing the children’s immunization status when it cannot be documented. Journal of Public Health in Africa, 14(9). https://doi.org/10.4081/jphia.2023.2450

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Original Articles