CDC / SCIENCE PHOTO LIBRARY CDC / SCIENCE PHOTO LIBRARY
HIV antigen blood testing. Microbiologist using an Enzyme Linked ImmunoSorbent Assay (ELISA) test, in order to develop a method for the rapid detection of HIV (human immunodeficiency virus) p24 antigen in blood samples. A biologist can be seen in the background working inside a negatively pressurised Biological Safety Cabinet (BSC), where she is preparing samples for testing. Photographed at the National Center for HIV/AIDS, Viral Hepatitis, STD, and TB Prevention (NCHHSTP), USA.
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