Watch Chapter 1 of Influenza 1918.
Read a detailed timeline of the 1918 epidemic that ultimately killed upwards of 600,000 people.
San Francisco was spared during the first wave of influenza in the spring of 1918. But as the second wave took its toll on eastern cities, the city prepared for a possible onslaught.
In the spring of 1918, as the nation mobilized for war, Private Albert Gitchell reported to an army hospital in Kansas. He was diagnosed with the flu, a disease doctors knew little about.