sentences:  In south Benin, where malaria is a common disease as in the rest of Africa, medicinal plants are used for treatment as an alternative to allopathic medicine.W National Park, IUCN Management Category II, a transboundary park among Niger, Benin and Burkina Faso, as a part of the Niger River, encompasses an area of in Benin; the prefix "W" is after the W-shaped bends in the Niger River that border's the park and which is fed the Tapoa River in the north, and the Mékrou River in the south.It is set in attitudinal range of 170 to 338 m. In addition, the buffer zones are the hunting zones of Mékrou , Djona and Kompa , apart from transition areas in a zone.