Both SARS and the new coronavirus were more serious, when SARS had a higher mortality rate, and this time the new coronavirus is spreading more strongly. The new coronavirus is still in the process of being recognized, and although the number of people diagnosed is now relatively high, the national authorities have been actively controlling it, and the growth rate has decreased, with a lower mortality rate compared to SARS.
During the SARS period, the information was more closed and the transportation was less developed than now, so relatively speaking the data was not perfect at that time, but now the information is spreading faster, and the new coronavirus broke out during the Chinese New Year, so the flow of people is larger, so the spreading speed should be faster.