Predicted breakpoints for CRF07_BC. The published recombinant structure is shown on the top picture, followed by predictions from the ball algorithm, Viterbi, and DualBrothers. None of the programs recovered all of the published breakpoints. The balls algorithm did not include 2 of the published breakpoints. Viterbi missed 4 published breakpoints, whereas DualBrothers missed 6. Recombinants were drawn using the HIV recombinant drawing tool .