Data Library Africa Malaria Meningitis Meningitis Meningitis Observed Meningitis Probability help@iri Printable Page

Epidemics of meningitis occur worldwide. The "meningitis belt" in the Sahel region of Africa, however, has the greatest incidence of the disease. Epidemics occur throughout the 'belt' in the dry season. They typically coincide with periods of very low humidity and dusty conditions and disappear with the onset of the rains, suggesting that these environmental factors may play an important role in the occurrence of the disease.

Observed Distribution of Meningitis Epidemics Observed distribution of meningitis epidemics during 1841-1999. Predicted Probability of Meningitis Epidemic Experience A meningitis risk map derived from an environmentally-driven model of predicted probability of epidemic experience.

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