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What is an ELISA test for HIV?

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What is an ELISA test for HIV?

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Enzyme-Linked Immunosorbent Assays (ELISAs) or Enzyme Immuno-Assays (EIAs) are the most widely used screening tests for HIV/AIDS and detect antibodies produced by our body against HIV. Earlier test kits used crude viral antigens to detect HIV antibodies but the new kits use more specific recombinant protein and synthetic peptide antigens, giving highly sensitive and specific test results. Some new kits also detect viral antigens for an early diagnosis.