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    Vaccine. 2010 Nov 3;28(47):7460-7. Epub 2010 Sep 25.

    Effectiveness of seasonal 2008-2009, 2009-2010 and pandemic vaccines, to prevent influenza hospitalizations during the autumn 2009 influenza pandemic wave in Castellón, Spain. A test-negative, hospital-based, case-control study.

    Source

    Health Promotion Unit, Centro de Salud Pública, Avda del Mar, 12, 12003 Castellón, Spain. jpuigb@terra.es

    Abstract

    We estimate the impact of the two previous influenza seasonal vaccines and the pandemic vaccine on risk of A (H1N1) 2009 laboratory confirmed hospitalizations during the autumn 2009 pandemic wave in Castellón, Spain. We conducted a test-negative, hospital-based, case-control study. Influenza A (H1N1) 2009 infection was detected in 147 (44%) of 334 patients hospitalized for a presumptive influenza related illness. No effect was observed for the 2008-2009 and 2009-2010 seasonal influenza vaccines. However, the pandemic vaccine was associated with an adjusted vaccine effectiveness of 90% (95% CI, 48-100%). Pandemic vaccines were effective in preventing pandemic influenza associated hospitalizations.

    Copyright © 2010 Elsevier Ltd. All rights reserved.

    PMID:
    20875486
    [PubMed - indexed for MEDLINE]

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