what is leprosy and what causes it
Leprosy is a chronic, progressive bacterial infection. It primarily affects the nerves of the extremities, the lining of the nose, and the upper respiratory tract.It is caused by the bacteria Mycobacterium leprae. Leprosy produces skin sores, nerve damage, and muscle weakness if left untreated.It can cause severe disfigurement and significant disability.t primarily affects the nerves of the extremities, the lining of the nose, and the upper respiratory tract. It is caused by the bacteria Mycobacterium leprae. Leprosy produces skin sores, nerve damage, and muscle weakness if left untreated. It can cause severe disfigurement and significant disability.