Medical personnel erect signs promoting disease prevention at an unidentified location during World War I. The signs include a symbol resembling an "H" and public health instructions to rinse the mouth, use tattle-tape, and bring one's own change, possibly referring to hygiene practices to prevent the spread of contagions.

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Size: 9182px × 6299px
Photo credit: © piemags/NSC / Alamy / Afripics
License: Licensed
Model Released: No

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