FIG. 1.

Comet reduction by anti-EV antibodies. BS-C-1 monolayers were inoculated with VACV IHD-J and 2 h later were incubated with no antibody (None, top two wells) or 20 μg per ml of MAbs or PAbs to A33, B5, or L1 in liquid medium. After 36 h, the cells were stained with crystal violet to visualize comets. The left and right no-antibody controls correspond to the PAb and MAb experiments, respectively, which were carried out on different days.