Volume 9, Number 10—October 2003
Research
Environmental Risk and Meningitis Epidemics in Africa
Anna M. Molesworth*, Luis E. Cuevas*, Stephen J. Connor*, Andrew P. Morse†, and Madeleine C. Thomson*
Table 4
Population residing in districts at risk for meningitis epidemics in Africa
| Risk | No. of districts | 1990 population in millions (%) |
|---|---|---|
| Low |
1,572 |
291 (49) |
| Moderate |
971 |
162 (27) |
| High |
482 |
102 (17) |
| Very high |
251 |
44 (7) |
| Not known |
5 |
1 (<1) |
| Total | 3,281 | 600 |
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