该文可能的局限性：似乎武汉与世界各地的parameters有差别？

Our study has several limitations. First, as our simulations were
based on parameters estimated for symptomatic cases found in the
early stage of the outbreak in Wuhan, which may not account for
asymptomatic and mild infections, we may have underestimated the
total number of infections.

https://www.nature.com/articles/s41586-020-2293-x_reference.pdf#page4