Milk truckers do not! pick up milk at farms where there are cases of diphtheria, scarlet fever, infantile paralysis, spinal meningitis, smallpox, typhoid Report all cases on your route to .... Food and Drug Administration [sic].

Poster encouraging truck drivers to report to proper authorities cases of communicable diseases encountered on their routes.
Date stamped on verso: Jul 20 1940.
Work Projects Administration Poster Collection (Library of Congress).
Exhibited: "Capitol Visitor's Center" at the U.S. Capitol, Washington, D.C., Nov. 1, 2005 - Dec. 31, 2006.