Integration of the RTS,S/AS01 malaria vaccine into the Essential Programme on Immunisation in western Kenya : a qualitative longitudinal study from the health system perspective

Copyright © 2024 The Author(s). Published by Elsevier Ltd. This is an Open Access article under the CC BY 4.0 license. Published by Elsevier Ltd.. All rights reserved..

BACKGROUND: Malaria accounts for over half a million child deaths annually. WHO recommends RTS,S/AS01 to prevent malaria in children living in moderate-to-high malaria transmission regions. We conducted a qualitative longitudinal study to investigate the contextual and dynamic factors shaping vaccine delivery and uptake during a pilot introduction in western Kenya.

METHODS: The study was conducted between Oct 3, 2019, and Mar 24, 2022. We conducted participant and non-participant observations and in-depth interviews with health-care providers, health managers, and national policymakers at three timepoints using an iterative approach and observations of practices and processes of malaria vaccine delivery. Transcripts were coded by content analysis using the consolidated framework for implementation research, to which emerging themes were added deductively and categorised into challenges and opportunities.

FINDINGS: We conducted 112 in-depth interviews with 60 participants (25 health-care providers, 27 managers, and eight policy makers). Health-care providers highlighted limitations in RTS,S/AS01 integration into routine immunisation services due to the concurrent pilot evaluation and temporary adaptations for health reporting. Initial challenges related to the complexity of the four-dose schedule (up to 24-months); however, self-efficacy increased over time as the health-care providers gained experience in vaccine delivery. Low uptake of the fourth dose remained a challenge. Health managers cited insufficient trained immunisation staff and inadequate funding for supervision. Confidence in the vaccine increased among all participant groups owing to reductions in malaria frequency and severity.

INTERPRETATION: Integration of RTS,S/AS01 into immunisation services in western Kenya presented substantial operational challenges most of which were overcome in the first 2 years, providing important lessons for other countries. Programme expansion is feasible with intensive staff training and retention, enhanced supervision, and defaulter-tracing to ensure uptake of all doses.

FUNDING: PATH via World Health Organization; Gavi, the Vaccine Alliance; The Global Fund; and Unitaid.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:12

Enthalten in:

The Lancet. Global health - 12(2024), 4 vom: 13. März, Seite e672-e684

Sprache:

Englisch

Beteiligte Personen:

Hill, Jenny [VerfasserIn]
Bange, Teresa [VerfasserIn]
Hoyt, Jenna [VerfasserIn]
Kariuki, Simon [VerfasserIn]
Jalloh, Mohamed F [VerfasserIn]
Webster, Jayne [VerfasserIn]
Okello, George [VerfasserIn]

Links:

Volltext

Themen:

Journal Article
Malaria Vaccines

Anmerkungen:

Date Completed 18.03.2024

Date Revised 18.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/S2214-109X(24)00013-5

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM369207912