Enzyme-linked immunosorbent assay (ELISA): a practical tool for rapid diagnosis of viruses and other infectious agents

Yale J Biol Med. Jan-Feb 1980;53(1):85-92.


Tissue culture techniques are inadequate to diagnose some viral infections. Thus, solid-phase immunoassays have been developed for the direct detection of viral antigens in clinical specimens. While radioimmunoassays (RIA) have attained widespread use, solid-phase enzyme-linked immunosorbent assays (ELISA) offer a number of advantages over RIA systems. ELISAs can be established with approximately the same sensitivity as radioimmunoassays without utilizing unstable, gamma-emitting isotopes. However, before ELISA systems can obtain widespread usage, a number of aspects of the test must be optimized. These include the preparation and use of reagents, the nature of the solid phase, the choice of enzyme, and the enzyme-antibody conjugation method. With the solving of these problems, ELISA should attain widespread usage for rapid diagnosis of a large number of infectious agents.

Publication types

  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Antigens, Viral / analysis
  • Enzyme-Linked Immunosorbent Assay*
  • Humans
  • Immune Sera
  • Immunoenzyme Techniques*
  • Methods
  • Virus Diseases / diagnosis*
  • Virus Diseases / immunology


  • Antigens, Viral
  • Immune Sera