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Figure 4 | International Journal of Health Geographics

Figure 4

From: Relationships between climate and year-to-year variability in meningitis outbreaks: A case study in Burkina Faso and Niger

Figure 4

The atmospheric situations characterizing a typical high incidence year. A composite analysis is performed by averaging separately the surface wind data for the years recording the highest (HIGH) and the lowest (LOW) incidence rates in Niger (top) and in Burkina Faso. The maps show the HIGH minus LOW difference in the October, November and December wind data (m/s) in order to point out the atmospheric situations characterizing a typical high incidence year. Only significant values at the 10% confidence interval using a Student test are reported.

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