Leprosy is also known as Hansen's disease after G. A. Hansen, who in 1878 identified the bacillus Mycobacterium leprae that causes the disease. The infection is characterized by abnormal changes of the skin. These changes, called lesions, are at first flat and red.eprosy is a slowly progressing bacterial infection that affects the skin, peripheral nerves in the hands and feet, and mucous membranes of the nose, throat, and eyes.
1 As a very general estimate, installing gas line costs $20 to $30 per foot. 2  In some areas and circumstances, however, the price could be $75 per foot or more. 3  This price should include the costs of trench digging and all necessary permits, drawings, and inspections.
The cost of the unit can range from as little as $150 for a gas log set that is placed in an existing fireplace, $500 or more for a freestanding unit with an integrated mantel or surround, to over $4,000 for a firebox or insert that must be framed into a wall for a custom finish.