The hunt for the origin of the AIDS virus began over 20 years ago. It
was a journey that went around the world and involved painstaking
research to unravel how, when, and where the virus first infected
humans. Dorothy H. Crawford traces the story back to the remote rain
forests of Africa--home to the primates that carry the ancestral
virus--and reveals how HIV-1 first jumped from chimpanzees to humans in
rural southeast Cameroon. Examining how this happened, and how it then
travelled back to Colonial west central Africa where it eventually
exploded as a pandemic, she asks why and how it was able to spread so
widely. From hospital intensive care wards to research laboratories and
the African rain forests, this is the wide-ranging story of a killer
virus and a tale of scientific endeavour.