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.
At present the site contains 268 countries, states and regions (past and present) Sahel Countries, 5 countries in the biogeographic zone of Africa: Burkina Faso, Mauritania, Mali, Niger and Chad [added] In order to search individual pages on a PC, remember that CTL + F brings another search box up.