Public domain
Innoculating eggs with yellow fever vaccine. USPHS (United States Public Health Service) Rocky Mountain Laboratory, Hamilton, Montana
From the collection of Library of Congress. Free to download, adapt and use — no permission needed.
Credit lineInnoculating eggs with yellow fever vaccine. USPHS (United States Public Health Service) Rocky Mountain Laboratory, Hamilton, Montana. 1942-01-01. Vachon, John. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.