👉 Leprosy is a disease that causes serious health problems in people with the Mycobacterium tuberculosis, which is an organism found on the skin and inside of the lungs. The main symptoms of leprosy include skin sores, pain, fever, weakness, and difficulty breathing. It's important to note that not all cases of leprosy are contagious, but it can be passed from one person to another through contaminated water or soil.