Table 1. Frequency and incidence rate of human laboratory-confirmed Rift Valley fever cases by province where exposed, stratified by year, South Africa, 2008–2011*.
| Province | 2008 |
2009 |
2010 |
2011 |
Total |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| No. (%) | IR | No. (%) | IR | No. (%) | IR | No. (%) | IR | No. (%) | |||||
| Free State | 0 | 0 | 0 | 0 | 125 (52) | 4.43 | 3 (8) | 0.11 | 128 (43) | ||||
| Northern Cape | 0 | 0 | 2 (29) | 0.17 | 80 (33) | 7.25 | 3 (8) | 0.27 | 85 (28) | ||||
| Eastern Cape | 0 | 0 | 0 | 0 | 16 (7) | 0.24 | 17 (46) | 0.25 | 33 (11) | ||||
| Western Cape | 0 | 0 | 0 | 0 | 11 (5) | 0.21 | 14 (38) | 0.26 | 25 (8) | ||||
| Gauteng | 9 (53) | 0.09 | 0 | 0 | 0 | 0 | 0 | 0 | 9 (3) | ||||
| North West | 0 | 0 | 0 | 0 | 8 (3) | 0.25 | 0 | 0 | 8 (3) | ||||
| Mpumalanga | 6 (35) | 0.17 | 0 | 0 | 0 | 0 | 0 | 0 | 6 (2) | ||||
| KwaZulu-Natal | 0 | 0 | 5 (71) | 0.05 | 0 | 0 | 0 | 0 | 5 (2) | ||||
| Limpopo |
2 (12) |
0.04 |
|
0 |
0 |
|
0 |
0 |
|
0 |
0 |
|
2 (1) |
| Total |
17 |
0.03 |
|
7 |
0.01 |
|
240* |
0.48 |
|
37 |
0.07 |
|
301† |
| *N = 302; IR, incidence rate/1000,000 persons. †Province known for 301 (99%) cases; province data not available for 1 case-patient in 2010. | |||||||||||||