Opsonophagocytic activity following a reduced dose 7-valent pneumococcal conjugate vaccine infant primary series and 23-valent pneumococcal polysaccharide vaccine at 12 months of age

Fiona Russell, Jonathan Carapetis, Burton, J Lin, Paul Licciardi, Anne Balloch, Lisi Tikoduadua, Lepani Waqatakirewa, Yin Cheung, Mimi Tang, Moon H Nahm, Edward (Kim) MULHOLLAND

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    Abstract

    Opsonophagocytic activity (OPA) was measured following reduced infant doses of 7-valent pneumococcal conjugate vaccine (PCV-7) with or without 23-valent pneumococcal polysaccharide vaccine (PPV-23) at 12 months, and subsequent re-exposure to a small dose of pneumococcal polysaccharide antigens (mPPS) at 17 months. Fijian infants were randomized to receive 0, 1, 2, or 3 PCV-7 doses. Half received PPV-23 at 12 months and all received mPPS at 17 months. OPA was performed on up to 14 serotypes. Three and 2 PCV-7 doses resulted in similar OPA for most PCV-7 serotypes up to 9 months and for half of the serotypes at 12 months. A single dose improved OPA compared with the unvaccinated group. PPV-23 significantly improved OPA for all serotypes tested but in general, was associated with diminished responses following re-challenge.
    Original languageEnglish
    Pages (from-to)535-544
    Number of pages10
    JournalVaccine
    Volume29
    Issue number3
    DOIs
    Publication statusPublished - 2011

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    Russell, F., Carapetis, J., Burton, Lin, J., Licciardi, P., Balloch, A., Tikoduadua, L., Waqatakirewa, L., Cheung, Y., Tang, M., Nahm, M. H., & MULHOLLAND, E. K. (2011). Opsonophagocytic activity following a reduced dose 7-valent pneumococcal conjugate vaccine infant primary series and 23-valent pneumococcal polysaccharide vaccine at 12 months of age. Vaccine, 29(3), 535-544. https://doi.org/10.1016/j.vaccine.2010.10.046