Here is Washington State we too are doing our part to promote swine flu
A search through Google Books with the keywords "spokane" "influenza" and "1918" turns up a bunch of good stuff, including this 1918 report from a labor union organizer about the difficulties of organizing when public meetings are prohibited because of the flu.
Cover your mouths when you sneeze, readers!
[Photo: Street car conductor in Seattle not allowing passengers aboard without a mask. 1918. Courtesy of the National Archives and Records Administration.]