ArticleChina CDC weekly2026
Combination Vaccines in Routine Childhood Immunization Programs - Worldwide, 2024.
Article in China CDC weekly, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Authors and funding
5 authors.
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Abstract
What Is Already Known About This Topic?: Combination vaccines enhance health system efficiency and caregiver compliance by reducing the number of clinic visits and injections required for routine childhood immunization. What Is Added by This Report?: In 2024, eight types of combination vaccines were in use worldwide, grouped into two categories: diphtheria-tetanus-pertussis (DTP)-containing vaccines (trivalent, quadrivalent, pentavalent, and hexavalent) and measles-containing vaccines (two bivalent types, trivalent, and quadrivalent). Pentavalent DTP-containing vaccines and measles-mumps-rubella (MMR) vaccines were the most widely used globally, yet 15 countries still lacked any measles-containing combination vaccine. Significant coverage gaps and service drop-offs persisted in low-income countries in Africa and the Americas, reflecting economic disparities in access to advanced formulations such as hexavalent vaccines. What Are the Implications for Public Health Practice?: To align with Immunization Agenda 2030 (IA2030), tailored strategies should integrate combination vaccines with strengthened primary healthcare delivery and sustainable financing mechanisms. This approach is essential for improving service continuity and reducing dropout rates in underperforming regions.
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