FIG. 1.

Comparative analyses of transduction efficiencies of vCMVp-lacZ in established human cell lines. Approximately equivalent numbers of HeLa (A), KB (B), and 293 (C) cells were infected with vCMVp-lacZ at an MOI of 20 under identical conditions. Forty-eight hours p.i., cells were fixed and stained with X-Gal, and blue cells were enumerated as described in the text. Magnification, ×100.