In this brilliant and gripping medical detective story. Richard Rhodes follows virus hunters on three continents as they track the emergence of a deadly new brain disease that first kills cannibals in New Guinea, then cattle and young people in Britain and France—and that has already been traced to food animals in the United States. In a new afterword for the paperback, Rhodes reports the latest US and worldwide developments of a burgeoning global threat.

In this brilliant and gripping medical detective story. Richard Rhodes follows virus hunters on three continents as they track the emergence of a deadly new brain disease that first kills cannibals in New Guinea, then cattle and young people in Britain and France—and that has already been traced to food animals in the United States. In a new afterword for the paperback, Rhodes reports the latest US and worldwide developments of a burgeoning global threat.