[binaryorganic]

Preprint and not peer reviewed. The WHO had it at 1.4-2.5 a few days ago.

https://www.who.int/news-room/detail/23-01-2020-statement-on...

[bjoyx]

Earlier measurements are likely to be biased downward:

https://www.academia.edu/41743064/Systemic_Risk_of_Pandemic_...