Before revision:  Finally, in light of our model findings, we analyze the bell-shaped curves of epidemic evolution from various affected regions , and recommend measures to steer the pandemic to its final descent at a universal decay rate of -0.32/day  .
After revision:  Finally, in light of our model findings, we analyze the bell-shaped curves of epidemic evolution from various affected regions and point out the significance of a universal decay rate of -0.32/day .