14 June 2021 : Clinical Research
A Cluster Transmission of Coronavirus Disease 2019 and the Prevention and Control Measures in the Early Stage of the Epidemic in Xi’an, China, 2020
Hui Zhang1DE, Shuxuan Song2EF, Zhijun Chen3B, Miao Bai4B, Zhen He2C, Ting Fu2C, Kun Liu2AEG, Zhongjun Shao2AG*DOI: 10.12659/MSM.929701
Med Sci Monit 2021; 27:e929701
Table 1 Information of the confirmed cases of COVID-19 in the cluster.
| Frist-generation | Second-generation | Third-generation | Fourth-generation | Fifth-generation | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | |
| Female | Male | Male | Female | Female | Male | Male | Female | Female | Female | |
| 45 | 14 | 54 | 53 | 44 | 47 | 54 | 53 | 55 | 83 | |
| Living history of Xiaogan | Living history of Xiaogan | Have lunch with 1,2 | Have lunch with 1,2 | Accept 1,3,4 | Accept 1,2,3,4 | Contact 5 | Contact 6 | Family of 8 | Family of 8 | |
| Before Jan 22 | Before Jan 25 | Jan 23 | Jan 23 | Jan 27 and 31 | Jan 29 | Jan 30 | Feb 2 | Feb 2–8 | Feb 2–8 | |
| Jan 23 | Jan 26 | Jan 30 | Jan 31 | Feb 2 | Feb 4 | Feb 3 | Feb 9 | Feb 10 | Feb 12 | |
| Jan 27 | Jan 28 | Jan 29 | Jan 28 | Feb 5 | Feb 5 | Feb 8 | Feb 9 | Feb 10 | Feb 10 | |
| Jan 28 | Jan 30 | Feb 2 | Feb 4 | Feb 7 | Feb 7 | Feb 8 | Feb 10 | Feb 12 | Feb 13 | |
| Feb 9 | Feb 11 | Feb 20 | Feb 24 | Mar 11 | Feb 26 | Feb 26 | Feb 26 | Feb 28 | Feb 28 | |
| /1− | /4− | 7 | 8 | 6/2 | 6 | 4 | 7 | 8/2 | 8/2 | |
| 5 | 4 | 3 | 4 | 5 | 3 | 5 | 1 | 2 | 1 | |
| 17 | 16 | 21 | 24 | 38 | 22 | 23 | 17 | 18 | 16 | |
| − Indicates that the exposure time of patients 1–2 cannot be accurately estimated due to the long-term residence in the epidemic area. | ||||||||||