Tropical Diseases - Causes



The disease organism, Mycobacterium leprae , or Hansen's bacillus , is believed to enter the skin or the respiratory system of the victim, probably during childhood. It rarely infects adults except under unusual circumstances, as through skin tattooing. Some medical scientists believe the infection may be transmitted through an insect bite, since the disease organism has been found in insects. However, the true process of leprosy infection remains unknown, and efforts to cultivate the mycobacterium in laboratory tissue cultures have been futile, although the disease can be induced in the footpads of experimental animals. Doctors have not found it necessary to isolate patients with the disease except during the period when treatments begin. Regular and thorough skin examinations of persons who have been in contact with leprosy patients and early detection and treatment of the disease by specialists are the recommended means of control.



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