[bjoyx]

Higher than 2.0

"The mean estimate of R0 for the 2019-nCoV ranges from 3.30 (95%CI: 2.73-3.96) to 5.47 (95%CI: 4.16-7.10), and significantly larger than 1. Our findings indicate the potential of 2019-nCoV to cause outbreaks."

https://www.biorxiv.org/content/10.1101/2020.01.23.916395v1

[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Preprint and not peer reviewed.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_...