Can clinical history be used to improve recency classification?

Yes. In addition to VL testing as a part of RITA, recency classification can also be improved by using clinical history to identify and exclude from TRI testing persons presenting to HTS with advanced HIV disease, low CD4+ T cell count, prior HIV diagnosis and prior/long-term ARV use. However, HIV diagnosis and subsequent ARV initiation with or without suppressed VL within the last 4 weeks of RTRI testing, should not affect the TRI result.