Figure 4.

Lineweaver-Burk plots of inhibition of A/PR/8/34 (H1N1) sialidase activity by OC, DANA and PVP-I. (empty blue diamond) no inhibitor; (filled pink circle) 4 × 10^-9 M OC; (filled green triangle) 75 μg/ml PVP-I; (empty orange upside down triangle) 5 × 10^-6 M DANA.