Table 1.

The estimated effective reproductive number (R), overdispersion parameter (k), proportion of infectious cases responsible for 80% of all cases, and proportion of cases that did not generate any secondary transmissions stratified by the phase and age group.

		N	R (95%CI)	k (95%CI)	*Prop80% (95%CI)	⁎⁎Prop0% (95%CI)
Whole Period	All	16471	0.47 (0.45–0.49)	0.23 (0.22–0.25)	13.3% (12.8%–13.9%)	77.2% (76.3%–78.1%)
	0-19	847	0.36 (0.30–0.43)	0.22 (0.17–0.29)	12.1% (9.9%–14.6%)	80.7% (76.8%–84%)
	20-39	7647	0.41 (0.38–0.43)	0.21 (0.19–0.23)	12.1% (11.4%–12.9%)	79.7% (78.4%–80.9%)
	40-69	5832	0.52 (0.49–0.55)	0.29 (0.26–0.32)	15.4% (14.4%–16.3%)	74.1% (72.6%–75.8%)
	70-	1996	0.62 (0.55–0.69)	0.21 (0.18–0.24)	13% (11.6%–14.5%)	74.9% (72.1%–77.5%)
Phase1	All	2415	0.53 (0.48–0.58)	0.21 (0.18–0.24)	12.6% (11.4%–13.9%)	76.9% (74.4%–79.1%)
	0-19	62	0.24 (0.11–0.45)	0.42 (0.12–Inf)	12.6% (5.4%–27.3%)	82.6% (63.7%–92.4%)
	20-39	762	0.35 (0.29–0.42)	0.24 (0.18–0.33)	12.4% (10%–15.3%)	80.6% (76.3%–84.2%)
	40-69	1233	0.57 (0.50–0.65)	0.22 (0.19–0.27)	13.3% (11.6%–15.3%)	75.3% (71.6%–78.4%)
	70-	343	0.83 (0.62–1.06)	0.20 (0.15–0.28)	13.9% (10.7%–17.6%)	72% (64.7%–78.3%)
Phase2	All	1738	0.37 (0.32–0.42)	0.19 (0.16–0.23)	11.2% (9.7%–12.9%)	81.5% (78.8%–83.9%)
	0-19	44	0.2 (0.07–0.43)	0.53 (0.08–Inf)	11.8% (3.5%–26.4%)	84.1% (64.9%–95.1%)
	20-39	471	0.24 (0.17–0.31)	0.16 (0.10–0.24)	8.8% (6.2%–11.9%)	86.4% (81.9%–90.4%)
	40-69	823	0.44 (0.36–0.53)	0.20 (0.15–0.26)	11.9% (9.7%–14.5%)	79.2% (74.8%–83%)
	70-	364	0.39 (0.29–0.5)	0.24 (0.16–0.36)	12.9% (9.5%–16.9%)	79.3% (73.1%–84.7%)
Phase3	All	6397	0.50 (0.47–0.53)	0.25 (0.23–0.27)	13.9% (13.1%–14.9%)	76% (74.5%–77.4%)
	0-19	443	0.45 (0.36–0.57)	0.26 (0.18–0.38)	14% (10.7%–18.1%)	76.9% (70.5%–82.1%)
	20-39	3795	0.47 (0.44–0.51)	0.21 (0.19–0.24)	12.5% (11.5%–13.6%)	78% (76.1%–79.8%)
	40-69	1625	0.58 (0.52–0.65)	0.32 (0.27–0.38)	16.5% (14.9%–18.5%)	71.8% (68.6%–74.6%)
	70-	455	0.49 (0.39–0.59)	0.34 (0.25–0.5)	16.4% (13%–20.5%)	73.8% (67.6%–79.1%)
Phase4	All	5921	0.44 (0.42–0.48)	0.25 (0.23–0.28)	13.7% (12.8%–14.7%)	77.4% (75.8%–78.9%)
	0-19	298	0.27 (0.17–0.38)	0.16 (0.09–0.28)	9.1% (5.9%–13.6%)	85.5% (78.9%–90.7%)
	20-39	2619	0.36 (0.32–0.39)	0.23 (0.19–0.27)	12.1% (10.8%–13.6%)	80.7% (78.5%–82.7%)
	40-69	2151	0.48 (0.44–0.53)	0.39 (0.33–0.46)	17.3% (15.6%–19.2%)	73.1% (70.3%–75.7%)
	70-	834	0.70 (0.58–0.82)	0.19 (0.16–0.24)	12.9% (10.9%–15.2%)	74.6% (70.1%–78.5%)

^⁎Prop80% is the proportion of cases responsible for 80% of all cases.

^⁎⁎Prop0% is the proportion of cases that did not generate any secondary transmissions.