| Latent period (days) |  | Incubation period (days) | ||||||
---|---|---|---|---|---|---|---|---|---|
Delta (672) | Omicron (885) | BA.1 (208) | BA.2 (677) | Â | Delta (405) | Omicron (420) | BA.1 (75) | BA.2 (345) | |
Mean | 4.40 (4.24 ~ 4.63*) | 2.58 (2.48 ~ 2.68) | 2.50 (2.27 ~ 2.76) | 2.58 (2.48 ~ 2.69) |  | 5.04 (4.83 ~ 5.33) | 3.41 (3.27 ~ 3.58) | 3.42 (3.00 ~ 3.89) | 3.39 (3.24 ~ 3.55) |
Standard deviation | 2.46 (2.32 ~ 2.65) | 1.52 (1.43 ~ 1.61) | 1.71 (1.48 ~ 1.95) | 1.46 (1.36 ~ 1.56) |  | 2.57 (2.37 ~ 2.79) | 1.59 (1.47 ~ 1.72) | 1.92 (1.54 ~ 2.34) | 1.51 (1.38 ~ 1.65) |
Median | 3.95 (3.81 ~ 4.16) | 2.28 (2.19 ~ 2.38) | 2.12 (1.92 ~ 2.34) | 2.32 (2.22 ~ 2.42) |  | 4.61 (4.41 ~ 4.87) | 3.17 (3.04 ~ 3.32) | 3.07 (2.66 ~ 3.50) | 3.17 (3.03 ~ 3.33) |
25th percentile | 2.59 (2.47 ~ 2.77) | 1.46 (1.38 ~ 1.54) | 1.24 (1.09 ~ 1.42) | 1.51 (1.43 ~ 1.60) |  | 3.16 (2.98 ~ 3.38) | 2.25 (2.13 ~ 2.38) | 2.01 (1.68 ~ 2.38) | 2.29 (2.16 ~ 2.43) |
75th percentile | 5.72 (5.50 ~ 6.02) | 3.38 (3.25 ~ 3.52) | 3.35 (3.04 ~ 3.70) | 3.37 (3.22 ~ 3.51) |  | 6.46 (6.18 ~ 6.82) | 4.31 (4.12 ~ 4.53) | 4.45 (3.90 ~ 5.04) | 4.25 (4.06 ~ 4.46) |
95th percentile | 9.07 (8.95 ~ 9.61) | 5.48 (5.22 ~ 5.74) | 5.81 (5.20 ~ 6.48) | 5.36 (5.08 ~ 6.64) |  | 9.87 (9.34 ~ 10.54) | 6.38 (6.04 ~ 6.77) | 7.06 (6.00 ~ 8.29) | 6.20 (5.83 ~ 6.57) |
97th percentile | 10.04 (9.55 ~ 10.67) | 6.09 (5.79 ~ 6.39) | 6.54 (5.83 ~ 7.34) | 5.93 (5.60 ~ 6.26) |  | 10.85 (10.22 ~ 11.60) | 6.97 (6.57 ~ 7.40) | 7.82 (6.58 ~ 9.25) | 6.74 (6.33 ~ 7.17) |
98th percentile | 10.79 (10.25 ~ 11.48) | 6.57 (6.23 ~ 6.89) | 7.11 (6.30 ~ 8.01) | 6.38 (6.02 ~ 6.74) |  | 11.60 (10.90 ~ 12.42) | 7.41 (6.98 ~ 7.90) | 8.40 (7.02 ~ 9.97) | 7.16 (6.71 ~ 7.64) |
99th percentile | 12.03 (11.41 ~ 12.83) | 7.36 (6.97 ~ 7.75) | 8.07 (7.08 ~ 9.14) | 7.12 (6.70 ~ 7.55) |  | 12.84 (12.02 ~ 13.79) | 8.16 (7.65 ~ 8.71) | 9.38 (7.79 ~ 11.23) | 7.85 (7.33 ~ 8.41) |