"Find the Story Line" Puzzle
from "Invisible People" by Nancy Kress
SBP OPKSLT SL ZPYFOPT SBP APN CPAPM FM ZPYFOPTPZ EQ YFXLMLHPM, NBFKB FM MUJPT SBUA DMFAC U OFTDM.
Substitute the letter V for O, but not O for V.
The vector to deliver the new genes is delivered by liposomes, which is safer than using a virus.