Author: Ruiyun Li; Sen Pei; Bin Chen; Yimeng Song; Tao Zhang; Wan Yang; Jeffrey Shaman
Title: Substantial undocumented infection facilitates the rapid dissemination of novel coronavirus (COVID-19) Document date: 2020_2_17
ID: 3nipr212_12
Snippet: For the outbreak origin, Wuhan city, the initial exposed population, VBWXY , and initial undocumented infected population, VBWXY B , were drawn from a uniform distribution [0, \X] ]. The documented infected population in Wuhan VBWXY A on January 10 was set to zero. Although infections were reported prior to January 10, these cases were sporadic and the EAKF adjustment can account for the effects of these early infections (by selecting elevated ex.....
Document: For the outbreak origin, Wuhan city, the initial exposed population, VBWXY , and initial undocumented infected population, VBWXY B , were drawn from a uniform distribution [0, \X] ]. The documented infected population in Wuhan VBWXY A on January 10 was set to zero. Although infections were reported prior to January 10, these cases were sporadic and the EAKF adjustment can account for the effects of these early infections (by selecting elevated exposed and unreported infection levels). For other cities, we defined < as the number of travelers from Wuhan to city on the first day of Chunyun. The initial exposed, documented infected and undocumented infected populations were set to < = < VBWXY / VBWXY , < A = 0 and <
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