From The NY Times. In the picture, a mother at an epilepsy clinic attends her son, who has had a severe seizure.FREETOWN, Sierra Leone — On a sweltering morning on a red-earth lane a few blocks from the largest mosque in this West African capital, Jeneba Kabba stands up. A tall, striking woman with a serious manner, Mrs. Kabba has been sitting under an awning in the outdoor classroom of a