https://www.usa.gov/copyrighted-government-workshttps://www.rawpixel.com/image/2288534Edit ImageSaveSaveEditCropCustom TextA scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.MorePublic DomainFree CCO U.S. Government image for Personal and Business useInfoView CC0 LicenseEditorial use only JPEGTIFFBanner JPEG 1200 x 800 px | 300 dpiLarge JPEG 3430 x 2287 px | 300 dpiBanner TIFF 1200 x 800 px | 300 dpiBest Quality TIFF 3430 x 2287 px | 300 dpi | 44.91 MBFree DownloadA scientist examining the results of a hemagglutinin inhibition (HI) test. Original image sourced from US Government department: Public Health Image Library, Centers for Disease Control and Prevention. Under US law this image is copyright free, please credit the government department whenever you can”.More