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Impacts on health
One of the aims of AMMA is to study the West African Monsoon (WAM) public health impacts, focusing epidemics of meningitis and malaria.
Scientists involved with geophysics and public health study the relationship between intra-seasonal, seasonal and interannual climate variability and these epidemics in this belt.
An objective of AMMA is to evaluate the impact of WAM on the dynamics of meningitis and malaria by identifying the roles of winds, dust concentration, precipitation, temperature, humidity and some environmental variables in morbidity, diseases and mosquito density data at selected locations.
Another objective is to combine climate research and health sciences, for defining epidemiological monitoring for early warning of epidemics over WAM to contribute to limit their impact.
In the Sahel belt (Senegal, Mali, Burkina-Faso and Niger), a meningococcal meningitis epidemic affects every year 25 000 to 200 000 people during the dry season within the Meningitis Belt (10°-15°N).
Using statistical methods, AMMA researchers have recently produced the first quantified description of this relationship using epidemiological data over 9 years:
These results do not provide a direct link between the intensity of winter and the size of epidemics but should be useful for the development of epidemiological early-warning systems in this region, in order to prevent epidemics and try to limit their effect.
Malaria is the major of cause of mortality (1 million / year in tropical Africa). Malaria epidemics occur during the rainy season when the mosquito density increases drastically in response to precipitation, temperature and humidity.
Using both statistical and numerical methods, AMMA researchers are using datasets collected in various WA villages for describing the impact of climate variability during the rainy season on the density of vectors (Anopheles gambiae).
Mosquitoes were captured on human bait and indoor spraying. The focus is on intra-seasonal variability including surges and breaks during the rainy season to calibrate a model of anopheles and to predict epidemics (start, end, intensity).
* International conferences * - 26 January 2012
* News * - 26 January 2012
* Internationals programs * - 23 November 2011
* The tools * - 18 November 2011
* AMMA Press release 2009 * - 18 November 2011
* AMMA Press release 2006 * - 18 November 2011
* AMMA Press release 2007 * - 18 November 2011
* To know more about AMMA * - 18 November 2011
* Offers * - 18 November 2011
* Baloons * - 18 November 2011