Doubling Time of the COVID 19 Epidemic by Chinese Province
COVID 19 epidemic doubling time by Chinese province was increasing from January 20 through February 9, 2020. The harmonic mean of the arithmetic mean doubling time estimates ranged from 1.4 (Hunan, 95% CI, 1.2 2.0) to 3.1 (Xinjiang, 95% CI, 2.1 4.8) with an estimate of 2.5 days (95% CI, 2.4 2.6) for Hubei.
medRxiv