Was it crazy for this scientist to re-create a bird flu virus that killed 50 million people?
- Little about the Spanish flu, which would ultimately infect one-third of all souls on Earth and kill a staggering 50 million, makes sense. Most influenza outbreaks pick off the weakest among us: the young, elderly, and infirm. But this one, called the greatest medical holocaust in history, targeted and killed healthy adults. Even today, its origin remains puzzling, said a Centers for Disease Control and Prevention study that called it the mother of all pandemics.