MRSA Definition and Symptoms. MRSA, methicillin-resistant staphylococcus aureus, is an infection that is caused by a certain strain of staph bacteria that is resistant to the commonly used antibiotics.
The Sahel (/sÉËhÉl/) is the ecoclimatic and biogeographic zone of transition in Africa between the Sahara Desert to the north and the Sudanian Savanna to the south. Having a semi-arid climate, it stretches across the south-central latitudes of Northern Africa between the Atlantic Ocean and the Red Sea.
| Environment, Gambia, Mali, Mauritania, Senegal. Food and water shortages have left a trail of death and destruction in the Sahel [Reuters]. Between the vast Sahara Desert and the dense foliage of the African Rainforest is a band of semi-arid grassland.Known as the Sahel, this hardy landscape is one of Africa's most productive crop regions.But the crops in the Sahel are grown close to their limits of tolerance, and rely on natural rainfall.ood and water shortages have left a trail of death and destruction in the Sahel [Reuters]. Between the vast Sahara Desert and the dense foliage of the African Rainforest is a band of semi-arid grassland.