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    • Opinion
    • Open letter

    We must stand together for immunization in Africa

    An open letter to world leaders from Julius Bio, the president of Sierra Leone.

    By Julius Maada Wonie Bio // 13 August 2025

    The recent global pledging summit for Gavi, the Vaccine Alliance reminded us of what vaccines mean for families in Sierra Leone and indeed across our continent. Fewer parents have had to mourn a child lost to measles or pneumonia. Vaccines mean fewer hospital visits and more school graduations. This is public health as a cornerstone of national development.

    Africa’s progress has been hard-won. Over the past two decades, our countries have expanded immunization coverage dramatically and strengthened national systems through a partnership model that has pooled resources, built local capacity, and made delivery more predictable and efficient. It is a model that has enabled our countries to co-finance the vaccines we use and to steadily grow our contribution over time. It is working.

    But today, that progress is under threat.

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    Read more:

    ► Opinion: I fail to see the rationale for not supporting Gavi

    ► Opinion: If Gavi plans a ‘sunset,’ let it be a thoughtful transition

    ► Opinion: Why immunization is key to resilience in a changing world

    • Global Health
    • Democracy, Human Rights & Governance
    • Gavi, the Vaccine Alliance
    Printing articles to share with others is a breach of our terms and conditions and copyright policy. Please use the sharing options on the left side of the article. Devex Pro members may share up to 10 articles per month using the Pro share tool ( ).
    The views in this opinion piece do not necessarily reflect Devex's editorial views.

    About the author

    • Julius Maada Wonie Bio

      Julius Maada Wonie Bio

      Julius Maada Wonie Bio is the current and fifth president of the Republic of Sierra Leone.

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