Fig. 4From: Investigating vaccine-induced immunity and its effect in mitigating SARS-CoV-2 epidemics in ChinaImpact of delaying the start of the epidemic start and adopting NPIs on net reproduction number. a Net reproduction number Rt as a function of \(R^{NPIs}_{0}\) and epidemic start date for strategy 1. The bold line in black indicates Rt =1. b As a, but for strategy 2Back to article page