| 摘要 |
Exogenous cDNA capable of expressing interferon'' activity, exogenous interferon'' protein, inducers of endogenous interferon'' protein activity, inducers of endogenous interferon $ protein activity, inducers of endogenous interferon' activity, or inducers of other immune-enhancing activity can be combined with a vaccine to enhance an immune response. Specifically disclosed are adjuvant and vaccine combinations where the adjuvant comprises a cDNA capable of expressing interferon'' activity, a complex comprising polyriboinosinic-polyribocytidilic acid, or a complex comprising polyriboinosinic-polyribocytidilic acid, poly-L-lysine, and carboxymethylcellulose and where the vaccine is a live vaccine virus derived from a virus causing porcine reproductive and respiratory syndrome disease.
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