ELISA tests give specific, targeted results and often are able to do so within a very short period of time (only a few minutes, in some cases) Since they are traditionally done in either a 96-well or 384-well microtiter plate, multiple parallel tests can be done on diluted samples, without the problems of cross-contamination that other tests often must overcome.  Unlike the radiometric assays that ELISA was invented to replace, no radioactive materials are necessary, improving the safety of the procedure. The adaptability of the techniques, availability of necessary materials, and reproducibility of results make ELISA a popular, dependable choice for researchers in a myriad of academic fields.