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    Vaccine. 2009 Mar 4;27(10):1637-44. Epub 2008 Dec 9.

    Comparison of the safety and immunogenicity of ACAM1000, ACAM2000 and Dryvax in healthy vaccinia-naive adults.

    Source

    Division of Infectious Diseases and Immunology, Department of Internal Medicine, Saint Louis University School of Medicine, 1100 S. Grand Blvd - DRC-8th Floor, St. Louis, MO 63104, United States. freyse@slu.edu

    Abstract

    Currently, more than half of the world's population has no immunity against smallpox variola major virus. This phase I double-blind, randomized trial was conducted to compare the safety and immunogenicity of two clonally derived, cell-culture manufactured vaccinia strains, ACAM1000 and ACAM2000, to the parent vaccine, Dryvax. Thirty vaccinia-naïve subjects were enrolled into each of three groups and vaccines were administered percutaneously using a bifurcated needle at a dose of 1.0x10(8)PFU/mL. All subjects had a primary skin reaction indicating a successful vaccination. The adverse events, 4-fold neutralizing antibody rise and T cell immune responses were similar between the groups.

    PMID:
    19071184
    [PubMed - indexed for MEDLINE]

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