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- W4220851610 abstract "Although COVID-19 has been controlled in China, the risk of invasion of imported cases remains. We aimed to characterize the impact of the number of imported cases and the implementation of first-level emergency response (FLER) policy. A SCQIHR switching model was constructed and verified by the complete phased data of COVID-19 in Chongqing in 2020. Then it was used to investigate the impact of the number of imported cases and the timing of FLER. Lastly, it was evaluated by three actual scenarios in Chongqing in 2021. The proposed model can fit the multidimensional time series well. After the implementation of FLER, the mean effective reproduction number, contact rate and misdetection rate were decreased significantly, but the quarantine rate for close contacts and isolation rate for non-hospitalized infectious cases were increased significantly. The peaks of quarantined close contacts and hospitalized infectious cases increased linearly with the increase of the number of imported cases and the lag of FLER time, which was verified by three actual scenarios in Chongqing in 2021. These findings can provide guidance for local public health policy-making and allocation of medical resources, reduce the impact of COVID-19 on the local population." @default.
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- W4220851610 date "2022-06-01" @default.
- W4220851610 modified "2023-09-30" @default.
- W4220851610 title "A switching dynamic model based on phased COVID-19 data in Chongqing and its evaluation" @default.
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- W4220851610 doi "https://doi.org/10.1016/j.meegid.2022.105270" @default.
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