Table 1.

Incubation period distribution parameters

Measurement	Model A1		Model A2		Model B		Model C		Model D
	Param.	Value (±SE)	Param.	Value (±SE)	Param.	Value (±SE)	Param.	Value (±SE)	Param.	Value (±SE)
Median incubation period
	α	10.3 (±1.4)	θ	0.110 (±0.016)	α	6.33	α	11.0	θ	0.109 (±0.025)
	β	−1.35 (±0.25)	λ	8.84 × 10−6	β	−0.725	β	0	λ	8.79 × 10−6
			tlag	1					tlag	1
			t2	2.06 (±0.24)					t2	2.07 (±0.61)
			Nthresh	1 × 109					Nthresh	1 × 109
			σ	0.542 (±0.12)					σ	0.544 (±0.18)
Standard deviation
	γ	0.804 (±0.56)	γ	0.804 (±0.56)	γ	0.17	γ	0.713
	δ	−0.079 (±0.11)	δ	−0.079 (±0.11)	δ	0	δ	0