The invention provides a recombinant targeted bacteriophage for expressing a transgene in a target cell transduced with the bacteriophage. The bacteriophage comprises a first nucleic acid sequence encoding a pill capsid minor coat protein that is configured to display a cell-targeting ligand for enabling delivery of the bacteriophage to a target cell, a second nucleic acid sequence encoding at least one pVIII capsid major coat protein that is configured to display a foreign peptide thereon, and a transgene which encodes a protein which exerts a biological effect on the target cell.