With the rapid nature of progress in the field of AIDS and HIV, AIDS 2001: A Year in Review provides an essential summary of all major advances during the previous year. The entire fields is divided into subspecialties--"Virology, Vaccines & Immunology, Clinical Treatment and" Epidemiology and Social Issues --which are systematically reviewed by leading international figures. Each section presents succinct and authoritative reviews, with authors discussing key developments and identifying major issues to be addressed in the future.