FIG. 4.

Superinfection exclusion is limited to DHBV. Uninfected and DHBV-infected PDHs were prepared as described in Materials and Methods. (A) Cells were infected with a supernatant containing a recombinant adenovirus (Adeno) expressing β-galactosidase (β-gal). At 2 days postinfection, cells were fixed and stained for β-galactosidase activity. (B) Cells were infected with HSV-1 at an MOI of 10 and monitored for cytopathic effects. Cells are shown 2 days after HSV-1 infection. (C) Cells were infected with VSV at an MOI of 0.1 and monitored for cytopathic effects. Cells are shown 4 days after VSV infection.