Akkumulation af andre mutationer i proteasegenet (bl. a. ved positionerne 20, 33, 36, 46, 54, 71 og 90) kan også bidrage til resistens over for ritonavir.
Accumulation of other mutations in the protease gene (including at positions 20, 33, 36, 46, 54, 71, and 90) can also contribute to ritonavir resistance.