Download or read book Virus X written by Frank Ryan and published by FPR-Books Ltd. This book was released on 1998 with total page 448 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ryan has asked experts from around the world to explain where emerging viruses come from and how they have become so strong, and puts forward a new biological theory for the origins and successes of plague viruses. Originally published in 1996.