There
is a lot of new tests but elisa is just the type of test, there are 1st, 2nd, 3rd and 4th generation of elisas, and there continue to be a lot of research for new tests, the newest teste tend to be rapid test accurate as elsia tests, there has been also improvement also in the NAAT tests, and some labs are trying to come up with a new 5th generation rapid test (PCR+Antibody+p24) but is not ready yet.