Figure 2From: A novel acute HIV infection staging system based on 4thgeneration immunoassayReservoir size in the peripheral blood at time of acute HIV infection (A) and at 24Â weeks of antiretroviral therapy (B) using Fiebig and 4th generation enzyme immunoassay staging systems. FI to IV are Fiebig acute HIV infection stages I to IV. 4thG 1 to 3 are 4thG acute HIV infection stages 1 to 3. The whiskers indicate median (inter-quartile range).Back to article page