You can give an explanation and definition of “leprosy D” through its designation in the form of the letter “d” or the numbers “0.5”.
Deciphering leprosy D: lepra indeterminata - this disease includes patients with all other types of leprosy, in whom the disease is currently regarded as “indeterministic”, without signs of the acute phase, but with an exacerbation during the last year, due to remission or relapse. As a result, in some patients the origin of the pathogen (tribe), the so-called pathogen D, from which inflammation penetrates through the lymphatic systems into the respiratory system for treatment, may be changed.