Variables | Frequency (%) | Variable | Frequency (%) |
Country of residence by Continents | n (%) | Exposure to the person with similar illness | n (%) |
Africa | 6247 (63.2) | Yes | 2205 (22.3) |
America | 1(0.01) | Unknown | 1712 (17.3) |
Asia | 2 (0.02) | No | 2840 (28.7) |
Europe | 7 (0.1) |
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