Leviticus 13:17

But whenever raw flesh appears in him, he shall be unclean.

The priest shall examine the raw flesh, and pronounce him unclean: the raw flesh is unclean. It is leprosy.

Or if the raw flesh turns again, and is changed to white, then he shall come to the priest.

“When the body has a boil on its skin, and it has healed,

and in the place of the boil there is a white swelling, or a bright spot, reddish-white, then it shall be shown to the priest.

The priest shall examine it. Behold, if its appearance is deeper than the skin, and its hair has turned white, then the priest shall pronounce him unclean. It is the plague of leprosy. It has broken out in the boil.