Leprosy. Leprosy is uncommon and only mildly contagious. Per WHO- Leprosy in endemic in 91 countries. Over 50% of Leprosy in the world is centered in India. There are areas of high prevalence within Nepal, Burma, Brazil, Tanzania, Madagascar & Mozambique. According to WHO at the end of 2012 there were 189,018 cases of Leprosy world-wide. Leprosy is often called the least contagious of the infectious.
Yes. Leading cause of permanent disability in the world affecting mainly people living in tropical countries.
Yes. Leprosy is transmitted by contact with patients infected with mycobacterium leprae. Not common in the United States today.