BRS Microbiology and Immunology is a popular volume in the Board Review Series for medical students. Written in a concise, flexible, outline format, this book is intended to cover topics most commonly tested on USMLE. Included are 300 to 500 review questions in the USMLE-style format, and a comprehensive examination. New to the revised Fourth Edition are completely updated content; questions written in vignette format; a page of color plates depicting staining methods; and more information on immunology, parasitology, and fungi.