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Barriers to good performance during SIAs for polio and measles
| Sudan (n = 26) | Zambia (n = 22) | ||||
| Factors | Number | (%) | Number | (%) | |
| 1 | Mobile populations | 7 | 26.9 | - | - |
| 2 | Weather | 5 | 19.2 | - | - |
| 3 | Wide coverage area (distance) | 6 | 23.1 | 6 | 27.3 |
| 4 | Population illiteracy | 9 | 34.6 | 2 | 9.1 |
| 5 | Negative perceptions of community towards immunizations | 7 | 26.9 | 12 | 54.6 |
| 6 | Transport problems | 13 | 50.0 | 7 | 31.8 |
| 7 | Weak community involvement | 9 | 34.6 | 13 | 59.1 |
| 8 | Lack of supplies | 1 | 3.8 | 7 | 31.8 |
