Table 1.
General characteristics of COVID-19 cases nationwide, in Wuhan and in Guangdong Province, up to March 20, 2020.
| COVID-19 | Nationwide | Wuhan | Guangdong |
|---|---|---|---|
| Total number of confirmed cases | 80,739 | 50,005 | 1353 |
| Doubling time (day) | 2.2 | 2.4 | 3.1 |
| R0 (95%CI) | 5.0 (4.9−5.1) | 4.8 (4.6−5.0) | 0.7a (0.6−0.9) |
| SARS | Beijing | Hong Kong | Guangdong |
|---|---|---|---|
| Total number of confirmed cases | 2521 | 1734 | 1511 |
| Doubling time (day) | 12.4 | 5.7 | 14.3 |
| R0 (95%CI) | 2.6 (2.4−2.8) | 2.3 (2.0−2.5) | 2.3 (2.0−2.7) |
a
The R0 value of COVID-19 was estimated in secondary cases in Guangdong Province and the R0 in Guangdong is also named as an effective reproduction number which represents the transmissibility based on the countermeasures implemented.