What is the difference between elisa test and elfa test for hiv testing. i had a risky adventure and tested negative for hiv 1 and 2 as per elfa test.?

Always learning: Elfa is a variant on the elisa that is in use in some areas. I apologize for not having been familiar with it.

Very similar: Enzyme linked fluorescent assay is a bit newer than enzyme linked immunosorbent assay. Both testing methodologies are very accurate and reliable.

Shorter detection: Elfa is the new version of the elisa test; it has about a 5 day shorter detection time, being 95% sensitive at 28 days.