Adjusted control rate closely associated with the epidemiologic evolution of the recent COVID-19 wave in Shanghai, with 94.3% of all new cases being asymptomatic on first diagnosis - 06/09/22
Doi : 10.1016/j.jinf.2022.07.010
Lei Huang a, b, ⁎ 
a Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
b Medical Center on Aging of Ruijin Hospital, MCARJH, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
⁎Corresponding author at: Department of Oncology, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, 197 Ruijin Er Road, Shanghai, 200025, China.Department of OncologyRuijin HospitalShanghai Jiao Tong University School of Medicine197 Ruijin Er RoadShanghai200025China
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Highlights |
• | In the recent omicron wave in Shanghai, 94.3% were asymptomatic, 3.8% of whom became symptomatic later. |
• | The raw case fatality rate was 0.1% in all positive cases and 1.0% in all symptomatic cases. |
• | Numbers of newly identified non-quarantined and daily new cases peaked on April 2 and 13, respectively. |
• | The adjusted control rate (ACR) closely associated with the evolution of the omicron wave. |
• | ACR increased in a linear manner from April 4 (94.4%) to 29 (100.0%), and remained nearly 100.0% until June 1. |
Keywords : COVID-19, SARS-CoV-2, Omicron, Shanghai, Epidemiologic dynamics
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© 2022
Publié par Elsevier Masson SAS.
Vol 85 - N° 4
P. e89-e91 - octobre 2022 Retour au numéro
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