Hunting the 1918 Flu

In 1918 the Spanish flu epidemic swept the world and killed an estimated 20 to 40 million people in just one year, more than the number that died during the four years of the First World War. To this day medical science has been at a loss to explain the Spanish flu's origin. Most virologists are convinced that sooner or later a similarly deadly flu virus will return with a vengeance; thus anything we can learn from the 1918 flu may save lives in a new epidemic.

Responding to sustained intere...