Appendix 1—table 5. Mean incubation period and mean serial interval estimates for COVID-19 generated by other studies.
| Data | Number of Cases | Mean Incubation Period (days) | Mean Serial Interval (days) | Reference |
|---|---|---|---|---|
| Wuhan first cases | 425 | 5.2 (95CI 4.1-7.0) | 7.5 (95CI 5.3-19) | Li et al., 2020b |
| South Korea first cases | 24 | 3.6 | 4.6 | Ki and Task Force for 2019-nCoV, 2020 |
| Travellers from Wuhan | 88 | 6.4 (95CI 5.6-7.7) | - | Backer et al., 2019 |
| Diagnosis outside Wuhan (excluding Wuhan residents) | 52 | 5.0 (95CI 4.2-6.0) | - | Linton et al., 2020 |
| Diagnosis outside Wuhan (including Wuhan residents) | 158 | 5.6 (95CI 5.0-6.3) | - | Linton et al., 2020 |
| Transmission chains in Hong Kong | 21 chains | - | 4.4 (95CI 2.9-6.7) | Zhao et al., 2020 |
| Infector-infectee pairs* | 28 pairs | - | 4.0 (95CI 3.1-4.9) | Nishiura et al., 2020 |
*Note: included 3 infector-infectee pairs from this Singapore cluster. Remainder from Vietnam (4), South Korea (7), Germany (4), Taiwan (1) and China (9).