Leviticus 13:11 it is a chronic leprosy in the skin of his body, and the priest shall pronounce him unclean. He shall not isolate him, for he is unclean. (WEB NAS RSV NIV)
Deuteronomy 28:59 then Yahweh will make your plagues wonderful, and the plagues of your seed, even great plagues, and of long continuance, and sore sicknesses, and of long continuance. (See NAS)