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 Zhang 1DE* , Shuxuan Song 2EF* , Zhijun Chen 3B* , Miao Bai 4B , Zhen He 2C , Ting Fu 2C , Kun Liu 2AEG* , Zhongjun Shao 2AG*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. | ||||||||||