bivalent vaccine composition effective in preventing or ameliorating avian influenza virus infection

摘要

vaccine composition effective in preventing or ameliorating infection with avian influenza virus; method for preventing or ameliorating the outbreak of avian influenza virus infection. The invention relates to a vaccine composition which is effective in preventing or ameliorating infection with avian influenza virus. The vaccine contains at least two inactivated strains of the avian influenza virus, where the total combined haemagglutinin (ha) is at least about 256 ha / dose of the vaccine composition, and where each strain has at least about 128 strains. in the dose, and where still one of the strains has the same subtype as a provocative virus, and where at least one of the strains has a different subtype of the provocative virus.