Leviticus 13:44-46

he is a leprous man, he is unclean. The priest must pronounce him unclean; his infection is on his head. “As for the person who has the leprous infection, his clothes shall be torn and the hair of his head shall be uncovered, and he shall cover his mustache and call out, ‘Unclean! Unclean!’ He shall remain unclean all the days during which he has the infection; he is unclean. He shall live alone; he shall live outside the camp.