McKendry co-directs Q-BIOMED, the UK's national quantum-biomedical-sensing research hub (UKRI/NIHR, ~GBP24M), which brings NV-diamond and other quantum sensors into clinical diagnostics. Her own group has developed nitrogen-vacancy nanodiamond-labelled lateral-flow and rapid molecular tests -- including a quantum-enhanced SARS-CoV-2 antigen test and single-molecule HIV RNA detection -- that exploit resonant microwave control of the NV spin state to separate signal from background and push rapid point-of-care diagnostics toward single-molecule sensitivity, a direct human-diagnostics application of quantum sensing.