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Single radial immunodiffusion (SRID) potency analysis of H5N1 A/Indonesia/5/2005 vaccine in an accelerated stability study. A/Indonesia/5/2005 vaccine was stored at the recommended temperature (4–8°C) or at 37°C and analyzed by SRID at monthly intervals in the presence of homologous A/Indonesia/5/2005 potency antiserum or heterologous A/Vietnam/1203/2004 potency antiserum.
