TABLE 4.
Identification of Shigella species in 35 sewage samples by iUPPCR and bacterial culture
| Taxon | No. positive (%) as determined by:
|
|
|---|---|---|
| iUPPCR | Bacterial culture | |
| S. dysenteriae 1 | 2 (5.7) | 0 |
| S. dysenteriae 2 | 0 | 0 |
| S. sonnei | 3 (8.6) | 0 |
| S. flexneri 1 | 0 | 0 |
| S. flexneri 2 | 15 (42.9) | 5 (14.3)a |
| S. flexneri 3 | 3 (8.6) | 0 |
| S. flexneri 4 | 0 | 0 |
| S. flexneri 5 | 0 | 0 |
| S. flexneri 6 | 0 | 0 |
| S. boydii 1-6 | 0 | 0 |
| S. boydii 7-11 | 0 | 0 |
| S. boydii 12-15 | 0 | 0 |
| S. boydii 16-18 | 0 | 0 |
| Total | 23 (65.8) | 5 (14.3)a |
a
S. boydii serotypes 1 to 6, 7 to 11, 12 to 15, and 16 to 18 were identified by antisera against S. boydii serotypes 1 to 6, 7 to 11, 12 to 15, and 16 to 18, respectively. Values are significantly different between iUPPCR and bacterial culture of S. flexneri 2 (χ2 = 8.10; P < 0.01) and from total S. flexneri 2 (χ2 = 16.06; P < 0.01).