| 摘要 |
This invention features a composition that includes a multiple-cell organism for use as food for an aquatic animal (e.g., a fish or a shrimp), and a single-cell organism fed to, and as a result, bioencapsulated by, the multiple-cell organism. The single-cell organism has been transformed to express a recombinant antigen that induces an immune response in the aquatic animal.
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