FIG. 3.

Survival in human, chimpanzee, baboon, and macaque sera of β-Gal vectors from human and canine PCL. Survival of amphotropic or xenotropic retroviral vector packaged by human 293 or canine D17 PCL was determined as in the experiment for which results are shown in Fig. 2. Percent survival was defined as for Fig. 1. The full panel of vectors was tested against at least two individual donor sera from each species with comparable results.