https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13952598Edit ImageSaveSaveEditCropCustom TextYellow fever: two scientists wearing face masks at work in a laboratory. Photograph, 1910/1930 .Original public domain image from Wellcome CollectionMorePublic DomainFree CC0 image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGSmall JPEG 883 x 1200 px | 300 dpiLarge JPEG 2300 x 3124 px | 300 dpiFree DownloadYellow fever: two scientists wearing face masks at work in a laboratory. Photograph, 1910/1930 .More