Leviticus 13:1-2 New Revised Standard Version (NRSV)
Leprosy, Varieties and Symptoms
13 The Lord spoke to Moses and Aaron, saying:
2 When a person has on the skin of his body a swelling or an eruption or a spot, and it turns into a leprous[a] disease on the skin of his body, he shall be brought to Aaron the priest or to one of his sons the priests.
Leviticus 13:44-46 New Revised Standard Version (NRSV)
44 he is leprous,[a] he is unclean. The priest shall pronounce him unclean; the disease is on his head.
45 The person who has the leprous[b] disease shall wear torn clothes and let the hair of his head be disheveled; and he shall cover his upper lip and cry out, “Unclean, unclean.” 46 He shall remain unclean as long as he has the disease; he is unclean. He shall live alone; his dwelling shall be outside the camp.