Fig.2
From: Tenofovir diphosphate in dried blood spots and HIV-1 resistance in South Africa
a Concentration of TFV-DP in DBS in participants with viral breakthrough according to resistance testing status: Viral breakthrough with resistance, viral breakthrough without resistance, viral breakthrough where genotyping was unsuccessful and viral breakthrough where genotyping was not performed. The graph is right justified, with time to first confirmed viral breakthrough in months, with month 0 at which viral breakthrough occurred. The red dashed line represents the median TFV-DP concentration in those with viral suppression. b Log transformed concentration of TFV-DP in DBS in participants with viral breakthrough according to resistance testing status