Table 1.
Studies included for systematic analysis
| Study | n | Cities | Country | Study period | Publication |
|---|---|---|---|---|---|
| Ji et al. (20) | 2 | Beijing | China | prior to Jan 25 | Mar 16 |
| Li et al.(17) | 5 | Zhuhai City | China | Jan 28 - Feb 8 | Mar 11 |
| Liu H et al.(23) | 4 | Hubei Province | China | Jan 27 - Feb 14 | Mar 21 |
| Liu M et al.(25) | 5 | Chongqing | China | Mar 25 | |
| Liu W et al. (29) | 6 | Wuhan, Huangshi | China | Jan 7 - Jan 15 | Apr 2 |
| Lou et al. (24) | 3 | Zhengzhou | China | Mar 22 | |
| Paret et al. (35) | 2 | New York City, NY | United States | late March | Apr 17 |
| Parri et al. (37) | 9 | Florence, Rome, Milan, Brescia, Genova, Padua, Bergamo, Turin, Lodi, Udine, Verona, Lavagna, Pistoia, Varese, Bologna, Pordenone, Catanzaro, Cosenza | Italy | Mar 3 - Mar 27 | May 4 |
| Rahimzadeh et al. (36) | 9 | Chalus city, Sari city, Gonabad city, Tehran city | Iran | April | |
| See et al. (34) | 4 | Sungai Buloh, Langkawi, Seremban | Malaysia | prior to Feb 29 | Apr 15 |
| Shen et al. (31) | 9 | Changsha | China | Jan 8 - Feb 19 | Apr 7 |
| Su et al. (26) | 9 | Jinan, Shandong | China | Jan 24 - Feb 24 | Mar 25 |
| Sun et al. (22) | 8 | Wuhan | China | Jan 24 - Feb 24 | Mar 19 |
| Tan et al. (33) | 10 | Hunan | China | Jan 27 - Mar 10 | Apr 10 |
| Verdoni et al. (38)a | 8 | Bergamo | Italy | March-April | May 13 |
| Wei et al. (15) | 9 | Beijing, Hainan, Guangdong, Anhui, Shanghai, Zhejiang, Guizhou | China | Dec 8 - Feb 6 | Feb 14 |
| Xing et al. (18) | 3 | Qingdao | China | Jan 17 - Feb 23 | Mar 13 |
| Xu R et al. (14) | 2 | Guizhou province | China | 27-Jan | Feb 29 |
| Xu Y et al. (19) | 10 | Guangzhou | China | Jan 22 - Feb 20 | Mar 13 |
| Zhang T et al. (28) | 3 | Tianjin | China | Feb 3 - Feb 17 | Mar 29 |
| Zheng et al. (39) | 2 | Hubei | China | Feb 1 - Feb 10 | Mar 24 |
n, patients studied
a
Two patients were excluded from Verdoni et al. because all three samples tested from different sites were negative for the virus