WHO recommends replacing western blotting and line immunoassays with simpler tests in HIV testing services. These simpler tests include rapid diagnostic tests (RDTs) that can be used at the point-of-care, and enzyme immunoassays (EIAs). These tests get results to the client faster, produce accurate results more often, cost less, can be performed by various cadres of health providers, and can thus facilitate greater access and uptake of HIV testing services among those who need it most.