The purpose of this annual symposium of the Eastern Pennsylvania Branch of the American Society for Microbiology was to organize a panel of scientists to review the many newer aspects of urogenital infections (UGI). From the onset it was recognized that the subject of UGI is a broad one and that it would not be possible to do justice to all aspects in a two day program. Therefore, it was agreed not to attempt an extensive review of the many recognized sexually transmitted diseases (STD), in that these have been the subject of other recent scientific symposia either individually or...