Environmental virology began with water and wastewater. Although our domain was supposed to be foodborne viruses, there was much to be learned from the study in progress regarding detection and inactivation of viruses in water and wastewater. As mentioned above, we were requested to do some evaluations of a polycation coagulant (Cat-Floc) in controlling viruses in this context. The product showed promise (Cliver 1971) ; however, our application of the product to extraction of viruses from food samples was probably a mixed blessing to the manufacturer-they wanted to sell their product in large containers, and laboratory applications in food virology mostly produced requests for small volumes.