Hepatitis B is one of the world's most common viruses--and one of the top ten killers. Unlike much else in our often gloom-filled world, it looks likely that HBV will be effectively controlled, and possibly eradicated, within the next decade. If so, Baruch Blumberg will deserve a large share of the credit. But this book is much more than a scientific success story. It vividly conveys the existential adventure of science: the surprises, disappointments, exhilaration, and dull routines whose results serve us all so well. -- Robert M. May, President of the Royal Society A thoroughly engaging history of one of the most important medical discoveries of the century, recounted with keen insight, lively wit, and remarkable humility. Rarely is one afforded such an opportunity to learn firsthand from a world-class scientist how new paradigms in biology result from relentless questioning and intellectual passion. -- Jerome Groopman, Professor of Medicine, Harvard Medical School, author of "The Measure of our Days" A pioneer in the field, Blumberg has a unique insight and perspective. He clearly presents a superb account of the story of hepatitis B virus discovery and argues, interestingly, how such a discovery can mirror the general process by which scientific ideas evolve, including the contributions of chance, good fortune, intelligence, and hard work. -- Tonse N. Raju, Professor of Pediatrics, University of Illinois at Chicago, author of "The Nobel Chronicles" Baruch Blumberg, Nobel-prize winner for his discovery of the hepatitis B virus, has never before woven all the strands of the story into a full tapestry. What makes the story doubly fascinating is the world-wide public health importance of hepatitis B, as much of a killer as AIDS. Blumberg is an eloquent writer giving a fascinating account. General readers and experts alike will find this an enjoyable book, not least for the vivid touches that feel first-hand. -- Jenny Stanton, History Group, London School of Hygiene and Tropical Medicine

About 375 million people are infected with the hepatitis B virus. It has killed more people than AIDS and also causes millions of cases of liver cancer. The discovery of this deadly virus and the vaccine against it--a vaccine that is sharply decreasing the infection rate worldwide and is probably the first effective cancer vaccine--was one of the great triumphs of twentieth-century medicine. And it almost didn't happen. With wit and insight, this scientific memoir and story of discovery describes how Baruch Blumberg and a team of researchers found a virus they were not looking for and created a vaccine for a disease they previously knew little about--work that took the author around the world and won him the Nobel Prize. Blumberg and his collaborators were investigating relationships between gene distribution and disease susceptibility, research that was yielding interesting data but no real breakthroughs. Many viewed their work as more field trip than science. But, through decades of hard work and investigative twists and turns, their pursuit led to the hepatitis B antigen, the elusive virus itself, and, ultimately, the vaccine. As he takes the reader through the detective work that culminated in his incredible discovery, the author recounts with immediacy exciting moments in the lab and in the field--from a hair-raising flight to Africa to an unpleasant encounter with Alaskan sled dogs. The hepatitis B story is more than a fascinating chronicle of a major discovery. What Blumberg followed to the virus was a trail of remarkable "accidents" that happen when scientists seek answers to interesting questions. Those events, combined with the investigator's determined persistence, resulted in studies that generated a pharmaceutical industry, have far-flung public-health applications, and saved millions of lives.