Figure 9From: A mathematical model for evaluating the impact of nonpharmaceutical interventions on the early COVID-19 epidemic in the United KingdomThe parameters \(\beta (t)\), \(c(t)\), \(\delta _{I}(t)\), \(\mu (t)\), \(q(t)\), and \(\delta _{q}(t)\) varying with time in the five stages (from January 31 to November 5, 2020). The areas from dark to light colors correspond to 50%, 90%, 95%, and 99% CIsBack to article page