ffectiveness and cost-effectiveness of 6 intervention options for the Thai HIV cost-effectiveness model, US$ 2003Figure 2Total programme cost component by voluntary counselling and HIV testing (VCT) and antiretroviral drug (ARV) options.Options 1C and 2C have the lowest net programme cost in comparison to the other drug regimens, while 1B and 2B are the most expensive alternatives, on account of t