Pathogen : A bacterium (Mycobacterium leprae)
Mode of transmission : Prolonged contact with the infected person. Nasal
secretions are the most likely infectious material for family contacts.
Incubation period : 1-5 years
Formation of nodules and ulcer.
(iii) Scabs and deformities of fingers and toes.
(iv) Infected areas lose sensation.
Prevention and Cure
The children should be kept away from parents suffering from leprosy.
Some medicine may arrest the disease and prevent from spreading.