A gripping account of the 1918 flu pandemic and the modern-day hunt for this elusive and deadly virus In 1918, a flu virus more lethal than any that has come along since swept through the world, from the remotest villages in Arctic climates to crowded U.S.cities to the battlefields of Europe, killing forty million people. Yet, despite its devastating toll and the probability that other deadly pandemics await on the horizon, it was relegated to a footnote...