 Welcome to these case studies in clinical microbiology. Your course in clinical microbiology will encompass a study of the microbiological characteristics of infectious agents. The disease of infections they cause and the laboratory diagnosis of these infections taking relevant specimens to the laboratory for investigation. The course will also encompass the treatments of these infections. And most importantly, the control and or prevention of these infections. These case studies in clinical microbiology will be an adjunct to the lecture notes you will obtain in the didactic lectures. You can use them in one of two ways. You can have a read at these case study notes before the lectures so you'll be able to ask relevant clinical-based questions in the lecture. Or after lecture, when you have understood these, you then go back to these case studies and read them, compare them to what was presented to you theoretically in class. It is hoped that these case study notes will bridge your theoretical knowledge in class and your clinical practice. We hope you make very good use of the case study. Thank you.