An introduction to the structure, replication, and taxonomy of bacteriophages, plant, insect, and animal viruses. Their role in disease and methods of control and detection is also discussed. Prerequisites: BIOL 207, IMIN 200 and BIOCH 200 or 205. May not be taken for credit if credit already obtained in INT D 224. (Offered jointly by the Departments of Biological Sciences and of Medical Microbiology and Immunology.) [Biological Sciences]