Before revision:  Here we show that, since January 20 , the number of fatalities and infections increases quadratically and not exponentially, as widely believed. At present, no departure from this behavior can be seen, allowing tentative predictions to be made for the next 1-2 months.
After revision:  Here we show that, since January 20 and later since the end of March 2020. There is also a brief intermediate period of exponential growth. During the second quadratic growth phase, the characteristic time of the growth is about eight times shorter than in the beginning, which can be understood as the occurrence of separate hotspots. Quadratic behavior can be seen, allowing tentative predictions to be made for the next 1-2 months.