Leprosy: Those Afflicted With: Ceremonially Unclean

The priest will reexamine him, and if the rash has spread on the skin, the priest must pronounce him unclean; it is a skin disease.

…it is a chronic skin disease and the priest must pronounce him unclean. He need not isolate him, for he is unclean.

If it spreads any further on the skin, the priest must pronounce him unclean; it is an infection.

…the man is diseased; he is unclean. The priest must pronounce him unclean because of the infection on his head.