. English: A period photo of a poster issued by Alberta's provincial board of health alerting the public to the influenza epidemic. The poster gives information on the Spanish flu, and instructions on how to make a mask. circa 1918 1557 SpanishFluPosterAlberta

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Size: 2031px × 2461px
Photo credit: © History and Art Collection / Alamy / Afripics
License: Licensed
Model Released: No

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