Levinson & Jawetz : Medical Microbiology & Immunology

Although the sections on the pathogens may be too extensive for USMLE review, the introductory sections on virology and bacteriology are important to review. The 70 pages on immunology are excellent and concise, especially the hypersensitivity and immunodeficiency sections. The best part of this book is the Brief Summaries of Medically Important Organisms.