This lecture course designed to run concurrently with its complementary laboratory course. The lecture provides a survey of the microbial world including bacteria, yeast, molds, fungi, and viruses. The primary focus of the course is on the relationship between humans and microbes ranging from the various forms of parasitism to disease to immunity. Students develop an understanding of prokaryotic cell structure, bacterial genetics, and metabolism, control of microbial growth, how microbes cause specific disease, and various public health and medical interventions to combat microbial disease.