HIV self testing kit

Does HIV self testing kit work⚕
 
HIV self testing kits work on the same basis as rapid testing kits used in clinical laboratories. The kits detect the presence of antibodies to HIV in the sample provided. The difference is that while laboratories use blood as a sample, self test kits use oral fluid as a sample. Self test kits have a greater probability of error than rapid test kits that use blood as sample. This means that neither positive nor negative results are completely reliable and have to be confirmed by further testing in a clinical laboratory. The chance of error is quite small, but significant enough to warrant further confirmatory testing. The advantage of self testing is that an individual can test in privacy without the accompanying stigma.