Lecture, four hours; discussion, one hour; outside study, seven hours. Requisite: course CM145. Introduction of viruses and their varied roles in biotechnology, from utilization of viral enzymes to biotechnologies used to combat viral infectious diseases. Basic concepts of virology. Focus on use of viruses, including bacteriophages, and viral proteins as tools in biotechnology. Examples include bacteriophage display, virus-based nanomaterials, and viral vectors for gene delivery, and vaccines. Covers case studies of viral diseases and biotechnological strategies for diagnosis, prevention, and treatment. Examples include human immunodeficiency virus and coronaviruses. Students conduct literature searches and write paper on relevant topic of their choice. Concurrently scheduled with course C226. Letter grading.