Table 1.

Parameter values with sources.

Parameter	Ages	Value	Reference
Basic reproductive ratio (ℛ0)		1.4	[3, 4, 12, 16, 20]
			[31, 34, 35, 36, 42]
Overall vaccination coverage
for Nov 1 peak		20.5%*]	[8]
for Dec 1 peak		30.1%	By assumption
for Jan 1 peak		41.0%	By assumption
for Feb 1 peak		41.0%	By assumption
Latent period	all	3 days	[22]
Infectious period	all	4 days	[22]
Proportion of infections that become symptomatic (p)	all	0.67	[14, 17, 25, 44]
Population distribution	0–4	0.0691
(Nk(0)/N (0))	5–19	0.2027
	20–44	0.3437
	45–64	0.2567
	65+	0.1278
Proportion of population who are at high risk (ξk)	0–4	7.61%	[27]
	5–19	12.38%
	20–44	19.88%
	45–64	30.41%
	65+	50.15%
Proportion of population who have remote H1N1 immunity (χk)	0–4	0.00%	[24]
	5–19	0.00%
	20–44	7.50%
	45–64	7.50%
	65+	33.00%
Case fatality ratio (dk)	0–4	0.026%	[32]
	5–19	0.030%
	20–44	0.159%
	45–64	0.159%
	65+	0.090%
Case hospitalization ratio (hk)	0–4	2.45%	[32]
	5–19	0.93%
	20–44	3.00%
	45–64	3.00%
	65+	1.84%
Vaccine efficacy against infection (δk)	0–4	75.9%	[19]
	5–19	75.9%
	20–44	75.9%
	45–64	68.5%
	65+	66.1%
Vaccine efficacy against death (κk)	0–4	75%	[28]
	5–19	75%
	20–44	70%
	45–64	70%
	65+	60%

^*Age-specific vaccination coverage is shown in Table 2.