Perspectives in Virology IX: Antiviral Mechanisms is a collection of scientific papers presented at the Ninth Gustav Stern Symposium on Perspectives in Virology: Antiviral Mechanisms, held at Notre Dame, Indiana in February 1974. The majority of the papers in this volume concentrate on the different ways the human body defends itself against viral attack. Others deal with artificial means of interfering with the life cycle of viruses. Topics covered in this compendium include defective interfering (DI) particles as antiviral agents; detection and identification by immune electron microscopy of fastidious agents associated with respiratory illness, acute nonbacterial gastroenteritis, and hepatitis A; and synthetic vaccines. Cellular immune response in viral infections; transfer factor and cellular immunity to viral infection; and studies on adenine rabinoside are presented as well. Virologists, microbiologists, pathologists, pharmacologists, and researchers in the fields of medicine and pathology will find the book insightful and informative.