Fig. 4From: Effects of contact tracing and nucleic acid testing on the COVID-19 outbreak in Zunyi, China: data-driven study using a branching process modelGamma distribution of the number of potential infections when there was a single case (A). Effect of R0 (B), number of initial cases (C), mean incubation period (D), and effective vaccine coverage (E) on the number of infections. Horizontal black dotted lines (B–E) refer to the baseline scenario, in which 66.48% of the simulations led to fewer than 10 potential infectionsBack to article page