The proliferation of information on rotaviruses in the twenty years since their description as human pathogens has made it difficult to keep up with the latest developments in the field. Numerous aspects of rotavirus biology have been addressed in reviews, but these have been infrequent and quite selective in the material covered. The time appeared right to attempt to gather, into a single source, an overview of what we have learned. This volume is the result of that attempt. I hope that the reader will find in this single source, the core of information covering our current state of knowledge. I acknowledge my debt to the authors of the various chapters, for it is they who performed the tedious process of reviewing the literature and synthesizing and organizing it into concise works. R.F. RAMIG Contents Introduction and Overview R.F. RAMIG . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Structure of Rotavirus B.V.V. PRASAD and W. CHIU .................... 9 The Rotavirus Genome U. DESSELBERGER and M.A. MCCRAE . . . . . . . . . . . 31 . . Rotavirus Protein Structure and Function G.W. BOTH, AR. BELLAMY, and D.B. MITCHELL 67 Rotavirus Replication J.T. PATTON . . . . . . . . . . . . . . . . . . . . . . .. . . . 107 . . . . . . .