Ted R. Johnson is a professor emeritus of biology at St. Olaf College, a liberal arts college in Northfield, Minnesota, where he has taught courses in microbiology and immunology. He has taught at St. Olaf for 39 years and previously taught at Mankato State University for five years. He received his master’s degree and his Ph.D in microbiology from the University of Illinois in Chicago, Illinois. While at St. Olaf College, he has developed and directed several semester abroad and interim programs. He has been involved in advising health professions students and received the Fr.Joseph Walter Award for Health Profession advising. His research focuses on the immune response to virally induced cancer in various animal models.

Christine L. Case is a professor of microbiology at Skyline College in San Bruno, California, where she has taught for the past 47 years. She received her Ed. D. in curriculum and instruction from Nova Southeastern University and her M.A. in microbiology from San Francisco State University. She was Director for the Society for Industrial Microbiology (SIM). She received the ASM and California Hayward outstanding educator awards and SACNAS Mentor award. In addition to teaching, Chris contributes regularly to professional literature, develops innovative educational methodologies, and maintains a personal and professional commitment to conservation and the importance of science in society. Chris is also an avid photographer, and many of her photographs appear in this lab manual.