ELISA, or Enzyme-Linked Immunosorbent Assay, is a laboratory technique used to detect and quantify proteins, antibodies, or hormones in a sample through antigen-antibody interactions. It is crucial in clinical practice for diagnosing diseases, monitoring immune responses, and screening for infections, such as HIV. A key example of its application is in the detection of specific antibodies in autoimmune disorders, which can guide treatment decisions and patient management.
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