Cover photograph (Copyright © 2004, American Society for Microbiology. All Rights Reserved.): Monospecific antibody-induced aggregation of viral protein gB (blue) present on the surface of an SK cell infected with the alphaherpesvirus pseudorabies virus results in coaggregation of the viral protein gE (red) and a significant fraction of the lipid raft marker GM1 (green). This result indicates that these two viral proteins are linked and associate with lipid rafts. The object in the upper left is a pseudocolored electron micrograph of a pseudorabies virion (not to scale). (See related article on page 5279.)