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Table 2 Group of key population and attack rate of each group

From: Coronavirus disease 2019 outbreak in Beijing’s Xinfadi Market, China: a modeling study to inform future resurgence response

Group Exposed populations Quarantine protocol Tracing techniques Risk level Total no No. of cases Attack rate (%)
1 Workers at the XFD market Centralized quarantine Onsite High 3311 169 5.10
1.1 Workers at the BMTH Centralized quarantine Onsite High 838 119 14.20
1.2 Workers at the XFD market other than BMTH Centralized quarantine Onsite High 2473 50 2.02
2 Visitors to the XFD market on June 12th Centralized quarantine Onsite Medium 7689 8 0.10
2.1 Visitors to the BMTH market Centralized quarantine Onsite Medium 1078 8 0.74
2.2 Visitors to the XFD market other than BMTH Centralized quarantine Onsite Medium 6611 0 0
3 Visitors to XFD between May 30th and June 11th Home quarantine Big data Low 535 000 95 0.02
3.1 Visitors to the BMTH market Home quarantine Big data Low 75 000 64 0.09
3.2 Visitors to the XFD market other than BMTH Home quarantine Big data Low 460 000 31 0.007
  1. BMTH Beef and Mutton Trading Hall, XFD Xinfadi