An Isolated Viral Load Test May Generate False Positive Results for People Using Long-Acting PrEP

A single HIV viral load test may yield false positives for those on long-acting injectable cabotegravir (CAB-LA) PrEP, according to a multi-country study. A second test with a new blood sample reliably distinguishes true from false positives. Presented at the 2024 International AIDS Conference, the study highlights the need for optimizing HIV testing methods for CAB-LA PrEP users.