LHWs may eventually perform other essential POC tests within the long pipeline including multiplex POC tests for infectious diseases like HIV/syphilis dual testing, POC urine–based tenofovir, semiquantitative cryptococcal antigen, and some requiring significant hands-on time (Visitect CD4 lateral flow assay, urine FujiLAM), among other tests. Here, CD4 is linked to syphilis.