Practical Medical Microbiology by J. G. Collee, A. G. Fraser, B. P. Marmion and A. Simmons (often referred to by the classic contributors Mackie & McCartney in older editions) is a hands-on laboratory manual widely used in clinical microbiology training. Below is a concise, SEO-friendly blog post you can publish, optimized for readers searching for the book or its PDF.