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Volume 19, Number 7—July 2013
Dispatch
Multidrug-Resistant Atypical Variants of Shigella flexneri in China
Shaofu Qiu1, Yong Wang1, Xuebin Xu1, Peng Li1, Rongzhang Hao1, Chaojie Yang1, Nan Liu1, Zhenjun Li1, Zhongqiang Wang1, Jian Wang1, Zhihao Wu1, Wenli Su1, Guang Yang1, Huiming Jin1, Ligui Wang1, Yansong Sun, Zhengan Yuan, Liuyu Huang, and Hongbin Song
Table 1
Distribution of different Shigella spp. in China during 2008–2010 and 1991–2000
| Serotype | 1991–2000* |
May 2008–December 2010 |
|
|---|---|---|---|
| No. (%) isolates | No. (%) isolates | ||
| S. flexneri | 8,082 (86.2) | 208 (76.2) | |
| 1a | 272 (2.9) | 9 (3.3) | |
| 1b | 325 (3.5) | 29 (10.6) | |
| 1c | 15 (0.2) | 0 | |
| 2a | 6,468 (69.0) | 64 (23.4) | |
| 2b | 152 (1.6) | 3 (1.1) | |
| 3a | 255 (2.7) | 0 | |
| 3b | 57 (0.6) | 0 | |
| 3c | 9 (0.1) | 0 | |
| 4 | 230 (2.5) | 0 | |
| 5 | 30 (0.3) | 1 (0.4) | |
| 6 | 73 (0.8) | 3 (1.1) | |
| x | 70 (0.7) | 5 (1.8) | |
| y | 126 (1.3) | 2 (0.7) | |
| X variant (−:7,8, E1037), indole-negative variety |
0 |
73 (26.7) |
|
| S. flexneri serotype 2 variant (II:3,4,7,8) |
0 |
17 (6.2) |
|
| S. flexneri untypeable variant (−:E1037) |
0 |
2 (0.7) |
|
| S. sonnei |
1,022 (10.9) |
56 (20.5) |
|
| S. dysenteriae |
132 (1.4) |
6 (2.2) |
|
| S. boydii | 139 (1.5) | 3 (1.1) |
*Data are from (1).
1These authors contributed equally to this article.
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