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Estimating the transmission dynamics of Omicron in Beijing, November to December 2022 (preprint)
researchsquare; 2022.
Preprint Dans Anglais | PREPRINT-RESEARCHSQUARE | ID: ppzbmed-10.21203.rs.3.rs-2382470.v1
ABSTRACT
We tracked the effective reproduction number Rt of Omicron BF.7 in Beijing in November – December 2022 by fitting a transmission dynamic model parameterized with real-time mobility data to (i) the daily number of new symptomatic cases on November 1–11 (when the zero-covid interventions were still strictly enforced) and (ii) the proportion of individuals who participated in online polls on December 10–14 and self-reported to have been previously test-positive. After the announcement of “20 measures”, we estimated that Rt increased to 3.42 (95% CrI 2.79–4.17) on November 18. Infection incidence peaked on December 10, and the cumulative infection attack rate was 42.5% (95% CrI 20.3–63.9) on December 14. Surveillance programmes should be rapidly set up to monitor the evolving epidemiology and evolution of SARS-CoV-2 across China.

Texte intégral: Disponible Collection: Preprints Base de données: PREPRINT-RESEARCHSQUARE langue: Anglais Année: 2022 Type de document: Preprint

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Texte intégral: Disponible Collection: Preprints Base de données: PREPRINT-RESEARCHSQUARE langue: Anglais Année: 2022 Type de document: Preprint