Keywords: Elisa assay test.jpg An Asian female laboratory technician use the Elisa assay test to screen for HIV-I antibodies A Caucasian female laboratory technician in the background Topics/Categories Cancer Types -- AIDS-Related Science and Technology -- Laboratory Techniques/Equipment Type Color Photo Source National Cancer Institute Bill Branson Photographer 2195 The Web site of the National Cancer Institute http //www cancer gov 1985-03 Reuse Restrictions None - This image is in the public domain and can be freely reused Please credit the source and/or author listed above Bill Branson Photographer PD-USGov-HHS-NIH Media from National Cancer Institute Visuals Online Images uploaded by Fæ Immunoassays |