Topics cover morphology and ultra-structure, microbial evolution and diversity, pathogenicity and host responses, as well as the impact of microbiology on medicine and industry. Instruction is provided on the general methods for identification and growth of bacteria, and the effects of chemical and physical agents on microbes. Other areas include immunity, epidemiology, diagnosis, pathogenicity, treatment, and prevention of important pathogenic microorganisms and the diseases that they cause. Three hours lecture and three-hour laboratory weekly. Prerequisite: BIO 112.