Table 1. Parameters used in the simulation.

Parameter	varicella	Mumps	influenza
R0 before intervention	7.0–12.0	3.8–18.2	1.6–3.0
R0 after intervention	1.0	0.9	0.7
ω	0.08	0.09	0.5
γ	0.15	0.07	0.25
δ	0.42–0.69	0.55–0.87	0.14–0.69

δ is the possible range of positive rate of antibody in Chinese school-aged children during 2011∼2013, derived from the literature.