How long does it take for the symptoms of tuberculoid leprosy to develop?

Tuberculoid leprosy is a chronic infectious disease caused by the bacterium Mycobacterium leprae. It is the mildest form of leprosy and usually affects the skin and nerves. The symptoms of tuberculoid leprosy typically develop over a period of 2 to 5 years. However, in some cases, the symptoms may not appear for up to 20 years after infection.