https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/13957532Edit 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 LicenseJPEGSmall JPEG 894 x 1200 px | 300 dpiLarge JPEG 2310 x 3102 px | 300 dpiFree DownloadYellow fever: two scientists wearing face masks at work in a laboratory. Photograph, 1910/1930 .More