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Fig. 2 | BMC Medicine

Fig. 2

From: Relative role of border restrictions, case finding and contact tracing in controlling SARS-CoV-2 in the presence of undetected transmission: a mathematical modelling study

Fig. 2

Daily incidence of COVID-19 cases in Singapore arising from wild-type SARS-CoV-2 transmission in 2020, A notified imported cases who were isolated after testing positive or quarantined upon arrival, B notified local linked cases and modelled posteriors, C notified local unlinked cases and modelled posteriors, and D modelled posteriors for local missed infections. Daily incidence of COVID-19 cases in Singapore arising from SARS-CoV-2 Delta variant transmission in 2021, E notified local cases and modelled posteriors and F modelled posteriors for local missed infections. Grey-shaded areas in A–F represent periods with movement and visitor restrictions with darker shades signifying a reduced number of visitors to each household per day. Modelled posterior outbreak metrics for G wild-type SARS-CoV-2 transmission in 2020 and H Delta variant transmission in 2021

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