Table 1. Transmission routes, pathogens, and reporting timeliness of bacillary dysentery outbreaks in different settings in China, 2008–2024.
| Outbreak sites | Outbreaks, n (%) | Route of transmission, n (%) | Pathogen, n (%) |
Reported time, day
M (Q1–Q3) |
|||||||||||
| Waterborne | Foodborne | Contact-borne | Unknown | Shigella sonnei | Shigella flexneri | Shigella boydii | Mixed infection | Total | |||||||
| Note: M (Q1–Q3)=Median. * S. sonnei and S. flexneri. † S. flexneri and S. boydii. | |||||||||||||||
| School | 135 (76.7) |
64 (47.4) |
34 (25.2) |
6 (4.4) |
31 (23.0) |
79 (79.0) |
19 (19.0) |
1 (1.0) |
1 (1.0)* |
100 (100.0) |
3 (2–5) |
||||
| Village | 33 (18.8) |
18 (54.5) |
6 (18.2) |
1 (3.0) |
8 (24.2) |
4 (25.0) |
12 (75.0) |
0 (0.0) |
0 (0.0) |
16 (100.0) |
7 (4–11) |
||||
| Hospital | 4 (2.3) |
1 (25.0) |
0 (0.0) |
3 (75.0) |
0 (0.0) |
0 (0.00) |
1 (100.0) |
0 (0.0) |
0 (0.0) |
1 (100.0) |
16 (8–23) |
||||
| Building site | 3 (1.7) |
1 (33.3) |
1 (33.3) |
0 (0.0) |
1 (33.3) |
0 (0.0) |
1 (50.0) |
0 (0.0) |
1 (50.0)† |
2 (100.0) |
3 (3–6) |
||||
| Restaurant | 1 (0.6) |
0 (0.0) |
1 (100.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (0.0) |
0 (100.0) |
2 | ||||
| Total | 176 (100.0) |
84 (47.7) |
42 (23.9) |
10 (5.7) |
40 (22.7) |
83 (69.7) |
33 (27.7) |
1 (0.8) |
2 (1.7) |
119 (100.0) |
3 (2–6) |
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