Effects of vaccination and population structure on influenza epidemic spread in the presence of two circulating strains

Table 3 Total attack rates for 1-age class network model

		Attack rates: Prior vaccination V₀ = 0.2, ω₀ = 0.0			Attack rates: Vacc. during epidemic: V₀ = 0, ω₀ = 1.0
δ	T*	Strain 1+2	Strain-1	Strain-2	Strain 1+2	Strain-1	Strain-2
0.9	10	0.706272	0.141649	0.098164	0.640962	0.139139	0.134720
0.9	60	0.706589	0.141371	0.098143	0.640968	0.139135	0.134721
0.4	10	0.136833	0.713552	0.027143	0.008607	0.775840	0.002266
0.4	60	0.000225	0.853501	0.000043	0.000058	0.785292	0.000015

For the 1-age class network model, fraction ε₁ = 0.5 of degree class k₁ = 5 is infected with strain-1 at time t = 0, and fraction ε₂ = 0.5 of degree class k₂ = 10 with strain-2 at time t = T* = 10 days or 60 days. The initial number of strain-1 and strain-2 infections (introduced at times t = 0 and T*, respectively) in a population of size N =10,000, is 67 and 12, respectively.

ISSN: 1471-2458